diff --git a/module/language/elisp/runtime/function-slot.scm b/module/language/elisp/runtime/function-slot.scm
index 3b10205c1..5e5f625e4 100644
--- a/module/language/elisp/runtime/function-slot.scm
+++ b/module/language/elisp/runtime/function-slot.scm
@@ -1,6 +1,6 @@
 ;;; Guile Emacs Lisp
 
-;;; Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+;;; Copyright (C) 2009, 2010, 2021 Free Software Foundation, Inc.
 ;;;
 ;;; This library is free software; you can redistribute it and/or
 ;;; modify it under the terms of the GNU Lesser General Public
@@ -60,4 +60,5 @@
                quote
                %funcall
                %set-lexical-binding-mode)
+  #:declarative? #f
   #:pure)
diff --git a/module/language/elisp/runtime/value-slot.scm b/module/language/elisp/runtime/value-slot.scm
index c2f3666cc..d8f9cdd39 100644
--- a/module/language/elisp/runtime/value-slot.scm
+++ b/module/language/elisp/runtime/value-slot.scm
@@ -1,6 +1,6 @@
 ;;; Guile Emacs Lisp
 
-;;; Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+;;; Copyright (C) 2009, 2010, 2021 Free Software Foundation, Inc.
 ;;;
 ;;; This library is free software; you can redistribute it and/or
 ;;; modify it under the terms of the GNU Lesser General Public
@@ -19,6 +19,7 @@
 ;;; Code:
 
 (define-module (language elisp runtime value-slot)
+  #:declarative? #f
   #:pure)
 
 ;;; This module contains the value-slots of elisp symbols.