diff --git a/ice-9/boot-9.scm b/ice-9/boot-9.scm
index 0204f92fd..927da3e46 100644
--- a/ice-9/boot-9.scm
+++ b/ice-9/boot-9.scm
@@ -2752,6 +2752,11 @@ module '(ice-9 q) '(make-q q-length))}."
 ;; Return a list of expressions that evaluate to the appropriate
 ;; arguments for resolve-interface according to SPEC.
 
+(eval-case
+ ((compile-toplevel)
+  (if (memq 'prefix (read-options))
+      (error "boot-9 must be compiled with #:kw, not :kw"))))
+
 (define (compile-interface-spec spec)
   (define (make-keyarg sym key quote?)
     (cond ((or (memq sym spec)
diff --git a/module/language/elisp/spec.scm b/module/language/elisp/spec.scm
index c43328c22..a35c44112 100644
--- a/module/language/elisp/spec.scm
+++ b/module/language/elisp/spec.scm
@@ -20,8 +20,8 @@
 ;;; Code:
 
 (define-module (lang elisp spec)
-  :use-module (system lang language)
-  :export (elisp))
+  #:use-module (system lang language)
+  #:export (elisp))
 
 
 ;;;
diff --git a/module/language/ghil/spec.scm b/module/language/ghil/spec.scm
index b9679748a..6afdf0e17 100644
--- a/module/language/ghil/spec.scm
+++ b/module/language/ghil/spec.scm
@@ -20,13 +20,13 @@
 ;;; Code:
 
 (define-module (language ghil spec)
-  :use-module (system base language)
-  :export (ghil))
+  #:use-module (system base language)
+  #:export (ghil))
 
 (define-language ghil
-  :title	"Guile High Intermediate Language (GHIL)"
-  :version	"0.3"
-  :reader	read
-  :printer	write
-;;  :environment	(make-vmodule)
+  #:title	"Guile High Intermediate Language (GHIL)"
+  #:version	"0.3"
+  #:reader	read
+  #:printer	write
+;;  #:environment	(make-vmodule)
   )
diff --git a/module/language/r5rs/expand.scm b/module/language/r5rs/expand.scm
index c3a072044..45b722717 100644
--- a/module/language/r5rs/expand.scm
+++ b/module/language/r5rs/expand.scm
@@ -20,7 +20,7 @@
 ;;; Code:
 
 (define-module (language r5rs expand)
-  :export (expand void
+  #:export (expand void
 	   identifier? free-identifier=? bound-identifier=?
 	   generate-temporaries datum->syntax-object syntax-object->datum))
 
diff --git a/module/language/r5rs/spec.scm b/module/language/r5rs/spec.scm
index 4022711cf..b5d19e6d4 100644
--- a/module/language/r5rs/spec.scm
+++ b/module/language/r5rs/spec.scm
@@ -20,10 +20,10 @@
 ;;; Code:
 
 (define-module (language r5rs spec)
-  :use-module (system base language)
-  :use-module (language r5rs expand)
-  :use-module (language r5rs translate)
-  :export (r5rs))
+  #:use-module (system base language)
+  #:use-module (language r5rs expand)
+  #:use-module (language r5rs translate)
+  #:export (r5rs))
 
 
 ;;;
@@ -54,11 +54,11 @@
 ;;;
 
 (define-language r5rs
-  :title	"Standard Scheme (R5RS + syntax-case)"
-  :version	"0.3"
-  :reader	read
-  :expander	expand
-  :translator	translate
-  :printer	write
-;;  :environment	(global-ref 'Language::R5RS::core)
+  #:title	"Standard Scheme (R5RS + syntax-case)"
+  #:version	"0.3"
+  #:reader	read
+  #:expander	expand
+  #:translator	translate
+  #:printer	write
+;;  #:environment	(global-ref 'Language::R5RS::core)
   )
diff --git a/module/language/scheme/spec.scm b/module/language/scheme/spec.scm
index 765a70009..263621a3d 100644
--- a/module/language/scheme/spec.scm
+++ b/module/language/scheme/spec.scm
@@ -20,9 +20,9 @@
 ;;; Code:
 
 (define-module (language scheme spec)
-  :use-module (language scheme translate)
-  :use-module (system base language)
-  :export (scheme))
+  #:use-module (language scheme translate)
+  #:use-module (system base language)
+  #:export (scheme))
 
 ;;;
 ;;; Reader
@@ -41,10 +41,10 @@
 ;;;
 
 (define-language scheme
-  :title	"Guile Scheme"
-  :version	"0.5"
-  :reader	read
-  :read-file	read-file
-  :translator	translate
-  :printer	write
+  #:title	"Guile Scheme"
+  #:version	"0.5"
+  #:reader	read
+  #:read-file	read-file
+  #:translator	translate
+  #:printer	write
   )
diff --git a/module/language/scheme/translate.scm b/module/language/scheme/translate.scm
index 0c0912e42..2e8ce9b66 100644
--- a/module/language/scheme/translate.scm
+++ b/module/language/scheme/translate.scm
@@ -20,14 +20,14 @@
 ;;; Code:
 
 (define-module (language scheme translate)
-  :use-module (system base pmatch)
-  :use-module (system base language)
-  :use-module (system il ghil)
-  :use-module (system il inline)
-  :use-module (ice-9 receive)
-  :use-module (srfi srfi-39)
-  :use-module ((system base compile) :select (syntax-error))
-  :export (translate))
+  #:use-module (system base pmatch)
+  #:use-module (system base language)
+  #:use-module (system il ghil)
+  #:use-module (system il inline)
+  #:use-module (ice-9 receive)
+  #:use-module (srfi srfi-39)
+  #:use-module ((system base compile) #:select (syntax-error))
+  #:export (translate))
 
 
 (define (translate x e)
diff --git a/module/system/base/compile.scm b/module/system/base/compile.scm
index 98de7d1d0..4d8ff4bd0 100644
--- a/module/system/base/compile.scm
+++ b/module/system/base/compile.scm
@@ -20,15 +20,15 @@
 ;;; Code:
 
 (define-module (system base compile)
-  :use-syntax (system base syntax)
-  :use-module (system base language)
-  :use-module (system il compile)
-  :use-module (system il glil)
-  :use-module (system vm objcode)
-  :use-module (system vm vm) ;; for compile-time evaluation
-  :use-module (system vm assemble)
-  :use-module (ice-9 regex)
-  :export (syntax-error compile-file load-source-file load-file
+  #:use-syntax (system base syntax)
+  #:use-module (system base language)
+  #:use-module (system il compile)
+  #:use-module (system il glil)
+  #:use-module (system vm objcode)
+  #:use-module (system vm vm) ;; for compile-time evaluation
+  #:use-module (system vm assemble)
+  #:use-module (ice-9 regex)
+  #:export (syntax-error compile-file load-source-file load-file
            compiled-file-name
            scheme-eval read-file-in compile-in
            load/compile))
@@ -82,7 +82,7 @@
 	       (let* ((source (read-file-in file scheme))
 		      (objcode (apply compile-in source (current-module)
 				      scheme opts)))
-		 (if (memq :c opts)
+		 (if (memq #:c opts)
 		   (pprint-glil objcode port)
 		   (uniform-vector-write (objcode->u8vector objcode) port)))))
 	   (format #t "wrote `~A'\n" comp))))
@@ -136,13 +136,13 @@
       (lambda ()
         ;; expand
         (set! x ((language-expander lang) x e))
-        (if (memq :e opts) (throw 'result x))
+        (if (memq #:e opts) (throw 'result x))
         ;; translate
         (set! x ((language-translator lang) x e))
-        (if (memq :t opts) (throw 'result x))
+        (if (memq #:t opts) (throw 'result x))
         ;; compile
         (set! x (apply compile x e opts))
-        (if (memq :c opts) (throw 'result x))
+        (if (memq #:c opts) (throw 'result x))
         ;; assemble
         (apply assemble x e opts))
       (lambda (key val) val)))))
diff --git a/module/system/base/language.scm b/module/system/base/language.scm
index 47c408f67..609db7df0 100644
--- a/module/system/base/language.scm
+++ b/module/system/base/language.scm
@@ -20,8 +20,8 @@
 ;;; Code:
 
 (define-module (system base language)
-  :use-syntax (system base syntax)
-  :export (define-language lookup-language make-language
+  #:use-syntax (system base syntax)
+  #:export (define-language lookup-language make-language
            language-name language-title language-version language-reader
            language-printer language-read-file language-expander
            language-translator language-evaluator language-environment))
@@ -39,7 +39,7 @@
 			   ))
 
 (define-macro (define-language name . spec)
-  `(define ,name (make-language :name ',name ,@spec)))
+  `(define ,name (make-language #:name ',name ,@spec)))
 
 (define (lookup-language name)
   (let ((m (resolve-module `(language ,name spec))))
diff --git a/module/system/base/syntax.scm b/module/system/base/syntax.scm
index 33463e3c6..1fd607268 100644
--- a/module/system/base/syntax.scm
+++ b/module/system/base/syntax.scm
@@ -20,17 +20,10 @@
 ;;; Code:
 
 (define-module (system base syntax)
-  :export (%compute-initargs)
-  :export-syntax (define-type define-record record-case))
+  #:export (%compute-initargs)
+  #:export-syntax (define-type define-record record-case))
 (export-syntax |) ;; emacs doesn't like the |
 
-
-;;;
-;;; Keywords by `:KEYWORD
-;;;
-
-(read-set! keywords 'prefix)
-
 
 ;;;
 ;;; Type
diff --git a/module/system/il/compile.scm b/module/system/il/compile.scm
index cb56ed89f..91f5cc44c 100644
--- a/module/system/il/compile.scm
+++ b/module/system/il/compile.scm
@@ -20,14 +20,14 @@
 ;;; Code:
 
 (define-module (system il compile)
-  :use-syntax (system base syntax)
-  :use-module (system il glil)
-  :use-module (system il ghil)
-  :use-module (ice-9 common-list)
-  :export (compile))
+  #:use-syntax (system base syntax)
+  #:use-module (system il glil)
+  #:use-module (system il ghil)
+  #:use-module (ice-9 common-list)
+  #:export (compile))
 
 (define (compile x e . opts)
-  (if (memq :O opts) (set! x (optimize x)))
+  (if (memq #:O opts) (set! x (optimize x)))
   (codegen x))
 
 
@@ -330,10 +330,10 @@
 	 ;; compile body
 	 (comp body #t #f)
 	 ;; create GLIL
-	 (let ((vars (make-glil-vars :nargs (length vars)
-                                     :nrest (if rest 1 0)
-                                     :nlocs (length locs)
-                                     :nexts (length exts))))
+	 (let ((vars (make-glil-vars #:nargs (length vars)
+                                     #:nrest (if rest 1 0)
+                                     #:nlocs (length locs)
+                                     #:nexts (length exts))))
 	   (make-glil-asm vars meta (reverse! stack))))))))
 
 (define (finalize-index! list)
diff --git a/module/system/il/ghil.scm b/module/system/il/ghil.scm
index 2f1423a3d..dc8be3e4d 100644
--- a/module/system/il/ghil.scm
+++ b/module/system/il/ghil.scm
@@ -20,9 +20,9 @@
 ;;; Code:
 
 (define-module (system il ghil)
-  :use-syntax (system base syntax)
-  :use-module (ice-9 regex)
-  :export
+  #:use-syntax (system base syntax)
+  #:use-module (ice-9 regex)
+  #:export
   (<ghil-void> make-ghil-void ghil-void?
    ghil-void-env ghil-void-loc
 
diff --git a/module/system/il/glil.scm b/module/system/il/glil.scm
index 1b93bd149..a57295519 100644
--- a/module/system/il/glil.scm
+++ b/module/system/il/glil.scm
@@ -20,8 +20,8 @@
 ;;; Code:
 
 (define-module (system il glil)
-  :use-syntax (system base syntax)
-  :export
+  #:use-syntax (system base syntax)
+  #:export
   (pprint-glil
    <glil-vars> make-glil-vars
    glil-vars-nargs glil-vars-nrest glil-vars-nlocs glil-vars-nexts
diff --git a/module/system/il/inline.scm b/module/system/il/inline.scm
index 76f035bb2..d50beaf50 100644
--- a/module/system/il/inline.scm
+++ b/module/system/il/inline.scm
@@ -20,10 +20,10 @@
 ;;; Code:
 
 (define-module (system il inline)
-  :use-module (system base syntax)
-  :use-module (system il ghil)
-  :use-module (srfi srfi-16)
-  :export (*inline-table* define-inline try-inline try-inline-with-env))
+  #:use-module (system base syntax)
+  #:use-module (system il ghil)
+  #:use-module (srfi srfi-16)
+  #:export (*inline-table* define-inline try-inline try-inline-with-env))
 
 (define *inline-table* '())
 
diff --git a/module/system/repl/command.scm b/module/system/repl/command.scm
index 68072d399..ca5346d90 100644
--- a/module/system/repl/command.scm
+++ b/module/system/repl/command.scm
@@ -20,24 +20,24 @@
 ;;; Code:
 
 (define-module (system repl command)
-  :use-syntax (system base syntax)
-  :use-module (system base pmatch)
-  :use-module (system base compile)
-  :use-module (system repl common)
-  :use-module (system vm objcode)
-  :use-module (system vm program)
-  :use-module (system vm vm)
-  :autoload (system base language) (lookup-language)
-  :autoload (system il glil) (pprint-glil)
-  :autoload (system vm disasm) (disassemble-program disassemble-objcode)
-  :autoload (system vm debug) (vm-debugger vm-backtrace)
-  :autoload (system vm trace) (vm-trace vm-trace-on vm-trace-off)
-  :autoload (system vm profile) (vm-profile)
-  :use-module (ice-9 format)
-  :use-module (ice-9 session)
-  :use-module (ice-9 documentation)
-  :use-module (ice-9 and-let-star)
-  :export (meta-command))
+  #:use-syntax (system base syntax)
+  #:use-module (system base pmatch)
+  #:use-module (system base compile)
+  #:use-module (system repl common)
+  #:use-module (system vm objcode)
+  #:use-module (system vm program)
+  #:use-module (system vm vm)
+  #:autoload (system base language) (lookup-language)
+  #:autoload (system il glil) (pprint-glil)
+  #:autoload (system vm disasm) (disassemble-program disassemble-objcode)
+  #:autoload (system vm debug) (vm-debugger vm-backtrace)
+  #:autoload (system vm trace) (vm-trace vm-trace-on vm-trace-off)
+  #:autoload (system vm profile) (vm-profile)
+  #:use-module (ice-9 format)
+  #:use-module (ice-9 session)
+  #:use-module (ice-9 documentation)
+  #:use-module (ice-9 and-let-star)
+  #:export (meta-command))
 
 
 ;;;
@@ -122,7 +122,7 @@
 		 (not (eq? (string-ref (symbol->string (car args)) 0) #\-)))
 	     (let ((c (lookup-command key)))
 	       (if c
-		   (cond ((memq :h opts) (display-command c))
+		   (cond ((memq #:h opts) (display-command c))
 			 (else (apply (command-procedure c)
 				      repl (append! args (reverse! opts)))))
 		   (user-error "Unknown meta command: ~A" key))))))))
@@ -229,7 +229,7 @@ Load a file in the current module.
 
   -f    Load source file (see `compile')"
   (let* ((file (->string file))
-	 (objcode (if (memq :f opts)
+	 (objcode (if (memq #:f opts)
 		      (apply load-source-file file opts)
 		      (apply load-file file opts))))
     (vm-load (repl-vm repl) objcode)))
@@ -267,8 +267,8 @@ Generate compiled code.
   -O    Enable optimization
   -D    Add debug information"
   (let ((x (apply repl-compile repl form opts)))
-    (cond ((or (memq :e opts) (memq :t opts)) (puts x))
-	  ((memq :c opts) (pprint-glil x))
+    (cond ((or (memq #:e opts) (memq #:t opts)) (puts x))
+	  ((memq #:c opts) (pprint-glil x))
 	  (else (disassemble-objcode x)))))
 
 (define guile:compile-file compile-file)
diff --git a/module/system/repl/common.scm b/module/system/repl/common.scm
index c142cc177..edfb81500 100644
--- a/module/system/repl/common.scm
+++ b/module/system/repl/common.scm
@@ -20,11 +20,11 @@
 ;;; Code:
 
 (define-module (system repl common)
-  :use-syntax (system base syntax)
-  :use-module (system base compile)
-  :use-module (system base language)
-  :use-module (system vm vm)
-  :export (<repl> make-repl repl-vm repl-language repl-options
+  #:use-syntax (system base syntax)
+  #:use-module (system base compile)
+  #:use-module (system base language)
+  #:use-module (system vm vm)
+  #:export (<repl> make-repl repl-vm repl-language repl-options
                   repl-tm-stats repl-gc-stats repl-vm-stats
            repl-welcome repl-prompt repl-read repl-compile repl-eval
            repl-print repl-option-ref repl-option-set!
@@ -42,12 +42,12 @@
 
 (define %make-repl make-repl)
 (define (make-repl lang)
-  (%make-repl :vm (the-vm)
-              :language (lookup-language lang)
-              :options repl-default-options
-              :tm-stats (times)
-              :gc-stats (gc-stats)
-              :vm-stats (vm-stats (the-vm))))
+  (%make-repl #:vm (the-vm)
+              #:language (lookup-language lang)
+              #:options repl-default-options
+              #:tm-stats (times)
+              #:gc-stats (gc-stats)
+              #:vm-stats (vm-stats (the-vm))))
 
 (define (repl-welcome repl)
   (let ((language (repl-language repl)))
diff --git a/module/system/repl/describe.scm b/module/system/repl/describe.scm
index cb7d3b60e..0563def90 100644
--- a/module/system/repl/describe.scm
+++ b/module/system/repl/describe.scm
@@ -20,11 +20,11 @@
 ;;; Code:
 
 (define-module (system repl describe)
-  :use-module (oop goops)
-  :use-module (ice-9 regex)
-  :use-module (ice-9 format)
-  :use-module (ice-9 and-let-star)
-  :export (describe))
+  #:use-module (oop goops)
+  #:use-module (ice-9 regex)
+  #:use-module (ice-9 format)
+  #:use-module (ice-9 and-let-star)
+  #:export (describe))
 
 (define-method (describe (symbol <symbol>))
   (format #t "`~s' is " symbol)
diff --git a/module/system/repl/repl.scm b/module/system/repl/repl.scm
index 20155c753..4ddacbe64 100644
--- a/module/system/repl/repl.scm
+++ b/module/system/repl/repl.scm
@@ -20,16 +20,16 @@
 ;;; Code:
 
 (define-module (system repl repl)
-  :use-syntax (system base syntax)
-  :use-module (system base pmatch)
-  :use-module (system base compile)
-  :use-module (system base language)
-  :use-module (system repl common)
-  :use-module (system repl command)
-  :use-module (system vm vm)
-  :use-module (system vm debug)
-  :use-module (ice-9 rdelim)
-  :export (start-repl call-with-backtrace))
+  #:use-syntax (system base syntax)
+  #:use-module (system base pmatch)
+  #:use-module (system base compile)
+  #:use-module (system base language)
+  #:use-module (system repl common)
+  #:use-module (system repl command)
+  #:use-module (system vm vm)
+  #:use-module (system vm debug)
+  #:use-module (ice-9 rdelim)
+  #:export (start-repl call-with-backtrace))
 
 (define meta-command-token (cons 'meta 'command))
 
diff --git a/module/system/vm/assemble.scm b/module/system/vm/assemble.scm
index 298edc02f..72437dbb8 100644
--- a/module/system/vm/assemble.scm
+++ b/module/system/vm/assemble.scm
@@ -20,17 +20,17 @@
 ;;; Code:
 
 (define-module (system vm assemble)
-  :use-syntax (system base syntax)
-  :use-module (system il glil)
-  :use-module (system vm instruction)
-  :use-module (system vm objcode)
-  :use-module ((system vm program) :select (make-binding))
-  :use-module (system vm conv)
-  :use-module (ice-9 regex)
-  :use-module (ice-9 common-list)
-  :use-module (srfi srfi-4)
-  :use-module ((srfi srfi-1) :select (append-map))
-  :export (preprocess codegen assemble))
+  #:use-syntax (system base syntax)
+  #:use-module (system il glil)
+  #:use-module (system vm instruction)
+  #:use-module (system vm objcode)
+  #:use-module ((system vm program) #:select (make-binding))
+  #:use-module (system vm conv)
+  #:use-module (ice-9 regex)
+  #:use-module (ice-9 common-list)
+  #:use-module (srfi srfi-4)
+  #:use-module ((srfi srfi-1) #:select (append-map))
+  #:export (preprocess codegen assemble))
 
 (define (assemble glil env . opts)
   (codegen (preprocess glil #f) #t))
@@ -55,9 +55,9 @@
 (define (preprocess x e)
   (record-case x
     ((<glil-asm> vars meta body)
-     (let* ((venv (make-venv :parent e :nexts (glil-vars-nexts vars) :closure? #f))
+     (let* ((venv (make-venv #:parent e #:nexts (glil-vars-nexts vars) #:closure? #f))
 	    (body (map (lambda (x) (preprocess x venv)) body)))
-       (make-vm-asm :venv venv :glil x :body body)))
+       (make-vm-asm #:venv venv #:glil x #:body body)))
     ((<glil-external> op depth index)
      (do ((d depth (- d 1))
  	  (e e (venv-parent e)))
@@ -86,9 +86,9 @@
           (push (code->bytes code) stack))
         (dump-object! push-code! `(,bindings ,sources ,@tail))
         (push-code! '(return))
-        (make-bytespec :vars (make-glil-vars 0 0 0 0)
-                       :bytes (stack->bytes (reverse! stack) '())
-                       :meta #f :objs #f :closure? #f))))
+        (make-bytespec #:vars (make-glil-vars 0 0 0 0)
+                       #:bytes (stack->bytes (reverse! stack) '())
+                       #:meta #f #:objs #f #:closure? #f))))
 
 (define (codegen glil toplevel)
   (record-case glil
@@ -171,12 +171,12 @@
               ((ref set)
                (cond
                 (toplevel
-                 (push-object! (make-vlink-now :name name))
+                 (push-object! (make-vlink-now #:name name))
                  (push-code! (case op
                                ((ref) '(variable-ref))
                                ((set) '(variable-set)))))
                 (else
-                 (let* ((var (make-vlink-later :module module :name name))
+                 (let* ((var (make-vlink-later #:module module #:name name))
                         (i (cond ((object-assoc var object-alist) => cdr)
                                  (else
                                   (let ((i (length object-alist)))
@@ -186,7 +186,7 @@
                                  ((ref) `(late-variable-ref ,i))
                                  ((set) `(late-variable-set ,i))))))))
               ((define)
-               (push-object! (make-vdefine :module module :name name))
+               (push-object! (make-vdefine #:module module #:name name))
                (push-code! '(variable-set)))
               (else
                (error "unknown toplevel var kind" op name))))
@@ -214,13 +214,13 @@
        (let ((bytes (stack->bytes (reverse! stack) label-alist)))
 	 (if toplevel
 	     (bytecode->objcode bytes (glil-vars-nlocs vars) (glil-vars-nexts vars))
-	     (make-bytespec :vars vars :bytes bytes
-                            :meta (make-meta (reverse! binding-alist)
+	     (make-bytespec #:vars vars #:bytes bytes
+                            #:meta (make-meta (reverse! binding-alist)
                                              (reverse! source-alist)
                                              meta)
-                            :objs (let ((objs (map car (reverse! object-alist))))
+                            #:objs (let ((objs (map car (reverse! object-alist))))
                                     (if (null? objs) #f (list->vector objs)))
-                            :closure? (venv-closure? venv))))))))))
+                            #:closure? (venv-closure? venv))))))))))
 
 (define (object-assoc x alist)
   (record-case x
diff --git a/module/system/vm/conv.scm b/module/system/vm/conv.scm
index ebe72b4fe..280534f44 100644
--- a/module/system/vm/conv.scm
+++ b/module/system/vm/conv.scm
@@ -20,12 +20,12 @@
 ;;; Code:
 
 (define-module (system vm conv)
-  :use-module (system vm instruction)
-  :use-module (system base pmatch)
-  :use-module (ice-9 regex)
-  :use-module (srfi srfi-4)
-  :use-module (srfi srfi-1)
-  :export (code-pack code-unpack object->code code->object code->bytes
+  #:use-module (system vm instruction)
+  #:use-module (system base pmatch)
+  #:use-module (ice-9 regex)
+  #:use-module (srfi srfi-4)
+  #:use-module (srfi srfi-1)
+  #:export (code-pack code-unpack object->code code->object code->bytes
 	   make-byte-decoder))
 
 ;;;
diff --git a/module/system/vm/debug.scm b/module/system/vm/debug.scm
index b818ce8c1..b37d5095e 100644
--- a/module/system/vm/debug.scm
+++ b/module/system/vm/debug.scm
@@ -20,11 +20,11 @@
 ;;; Code:
 
 (define-module (system vm debug)
-  :use-syntax (system base syntax)
-  :use-module (system vm vm)
-  :use-module (system vm frame)
-  :use-module (ice-9 format)
-  :export (vm-debugger vm-backtrace))
+  #:use-syntax (system base syntax)
+  #:use-module (system vm vm)
+  #:use-module (system vm frame)
+  #:use-module (ice-9 format)
+  #:export (vm-debugger vm-backtrace))
 
 
 ;;;
@@ -38,7 +38,7 @@
     (if (null? chain)
       (display "Nothing to debug\n")
       (debugger-repl (make-debugger
-                      :vm vm :chain chain :index (length chain))))))
+                      #:vm vm #:chain chain #:index (length chain))))))
 
 (define (debugger-repl db)
   (let loop ()
diff --git a/module/system/vm/disasm.scm b/module/system/vm/disasm.scm
index c3025fe1b..20a8382e6 100644
--- a/module/system/vm/disasm.scm
+++ b/module/system/vm/disasm.scm
@@ -20,14 +20,14 @@
 ;;; Code:
 
 (define-module (system vm disasm)
-  :use-module (system base pmatch)
-  :use-module (system vm objcode)
-  :use-module (system vm program)
-  :use-module (system vm conv)
-  :use-module (ice-9 regex)
-  :use-module (ice-9 format)
-  :use-module (ice-9 receive)
-  :export (disassemble-objcode disassemble-program disassemble-bytecode))
+  #:use-module (system base pmatch)
+  #:use-module (system vm objcode)
+  #:use-module (system vm program)
+  #:use-module (system vm conv)
+  #:use-module (ice-9 regex)
+  #:use-module (ice-9 format)
+  #:use-module (ice-9 receive)
+  #:export (disassemble-objcode disassemble-program disassemble-bytecode))
 
 (define (disassemble-objcode objcode . opts)
   (let* ((prog  (objcode->program objcode))
diff --git a/module/system/vm/frame.scm b/module/system/vm/frame.scm
index 70d7d6341..a3e115d35 100644
--- a/module/system/vm/frame.scm
+++ b/module/system/vm/frame.scm
@@ -20,10 +20,10 @@
 ;;; Code:
 
 (define-module (system vm frame)
-  :use-module (system vm program)
-  :use-module (system vm instruction)
-  :use-module ((srfi srfi-1) :select (fold))
-  :export (frame-number frame-address
+  #:use-module (system vm program)
+  #:use-module (system vm instruction)
+  #:use-module ((srfi srfi-1) #:select (fold))
+  #:export (frame-number frame-address
            make-frame-chain
            print-frame print-frame-chain-as-backtrace
            frame-arguments frame-local-variables frame-external-variables
diff --git a/module/system/vm/instruction.scm b/module/system/vm/instruction.scm
index 31d5309f3..c820e9952 100644
--- a/module/system/vm/instruction.scm
+++ b/module/system/vm/instruction.scm
@@ -20,7 +20,7 @@
 ;;; Code:
 
 (define-module (system vm instruction)
-  :export (instruction-list
+  #:export (instruction-list
            instruction? instruction-length
            instruction-pops instruction-pushes
            instruction->opcode opcode->instruction))
diff --git a/module/system/vm/objcode.scm b/module/system/vm/objcode.scm
index b7218f846..70fd18adf 100644
--- a/module/system/vm/objcode.scm
+++ b/module/system/vm/objcode.scm
@@ -20,7 +20,7 @@
 ;;; Code:
 
 (define-module (system vm objcode)
-  :export (objcode->u8vector objcode? objcode->program  bytecode->objcode
+  #:export (objcode->u8vector objcode? objcode->program  bytecode->objcode
            load-objcode))
 
 (dynamic-call "scm_init_objcodes" (dynamic-link "libguile"))
diff --git a/module/system/vm/profile.scm b/module/system/vm/profile.scm
index fcbe0e0ba..2c17fc7a6 100644
--- a/module/system/vm/profile.scm
+++ b/module/system/vm/profile.scm
@@ -20,9 +20,9 @@
 ;;; Code:
 
 (define-module (system vm profile)
-  :use-module (system vm vm)
-  :use-module (ice-9 format)
-  :export (vm-profile))
+  #:use-module (system vm vm)
+  #:use-module (ice-9 format)
+  #:export (vm-profile))
 
 (define (vm-profile vm objcode . opts)
   (let ((flag (vm-option vm 'debug)))
diff --git a/module/system/vm/program.scm b/module/system/vm/program.scm
index 76446862e..5c1704490 100644
--- a/module/system/vm/program.scm
+++ b/module/system/vm/program.scm
@@ -20,7 +20,7 @@
 ;;; Code:
 
 (define-module (system vm program)
-  :export (arity:nargs arity:nrest arity:nlocs arity:nexts
+  #:export (arity:nargs arity:nrest arity:nlocs arity:nexts
            make-binding binding:name binding:extp binding:index
            source:addr source:line source:column source:file
            program-bindings program-sources
diff --git a/module/system/vm/trace.scm b/module/system/vm/trace.scm
index 0a0dc38ea..00f013c9d 100644
--- a/module/system/vm/trace.scm
+++ b/module/system/vm/trace.scm
@@ -20,11 +20,11 @@
 ;;; Code:
 
 (define-module (system vm trace)
-  :use-syntax (system base syntax)
-  :use-module (system vm vm)
-  :use-module (system vm frame)
-  :use-module (ice-9 format)
-  :export (vm-trace vm-trace-on vm-trace-off))
+  #:use-syntax (system base syntax)
+  #:use-module (system vm vm)
+  #:use-module (system vm frame)
+  #:use-module (ice-9 format)
+  #:export (vm-trace vm-trace-on vm-trace-off))
 
 (define (vm-trace vm objcode . opts)
   (dynamic-wind
@@ -34,13 +34,13 @@
 
 (define (vm-trace-on vm . opts)
   (set-vm-option! vm 'trace-first #t)
-  (if (memq :b opts) (add-hook! (vm-next-hook vm) trace-next))
+  (if (memq #:b opts) (add-hook! (vm-next-hook vm) trace-next))
   (set-vm-option! vm 'trace-options opts)
   (add-hook! (vm-apply-hook vm) trace-apply)
   (add-hook! (vm-return-hook vm) trace-return))
 
 (define (vm-trace-off vm . opts)
-  (if (memq :b opts) (remove-hook! (vm-next-hook vm) trace-next))
+  (if (memq #:b opts) (remove-hook! (vm-next-hook vm) trace-next))
   (remove-hook! (vm-apply-hook vm) trace-apply)
   (remove-hook! (vm-return-hook vm) trace-return))
 
diff --git a/module/system/vm/vm.scm b/module/system/vm/vm.scm
index e0395eae1..725c1a281 100644
--- a/module/system/vm/vm.scm
+++ b/module/system/vm/vm.scm
@@ -20,9 +20,9 @@
 ;;; Code:
 
 (define-module (system vm vm)
-  :use-module (system vm frame)
-  :use-module (system vm objcode)
-  :export (vm? the-vm make-vm vm-version
+  #:use-module (system vm frame)
+  #:use-module (system vm objcode)
+  #:export (vm? the-vm make-vm vm-version
            vm:ip vm:sp vm:fp vm:last-ip
 
            vm-load vm-return-value