diff --git a/ice-9/Makefile.am b/ice-9/Makefile.am
index e20197b74..cd1421818 100644
--- a/ice-9/Makefile.am
+++ b/ice-9/Makefile.am
@@ -24,11 +24,12 @@ AUTOMAKE_OPTIONS = foreign
 # These should be installed and distributed.
 ice9_sources = \
 	and-let*.scm boot-9.scm calling.scm common-list.scm debug.scm	\
-	emacs.scm expect.scm getopt-gnu-style.scm getopt-long.scm	\
-	hcons.scm lineio.scm ls.scm mapping.scm optargs.scm poe.scm	\
-	psyntax.pp psyntax.ss q.scm r4rs.scm readline.scm regex.scm	\
-	runq.scm session.scm slib.scm string-fun.scm syncase.scm	\
-	tags.scm threads.scm
+	emacs.scm expect.scm format.scm getopt-gnu-style.scm		\
+	getopt-long.scm hcons.scm lineio.scm ls.scm mapping.scm		\
+	optargs.scm poe.scm psyntax.pp psyntax.ss q.scm r4rs.scm	\
+	readline.scm regex.scm runq.scm session.scm slib.scm		\
+	string-case.scm string-fun.scm syncase.scm tags.scm		\
+	threads.scm
 
 # These should be installed, but not distributed.
 ice9_generated = version.scm
diff --git a/ice-9/Makefile.in b/ice-9/Makefile.in
index 4a95b2b9c..80ee39887 100644
--- a/ice-9/Makefile.in
+++ b/ice-9/Makefile.in
@@ -94,7 +94,7 @@ qtmds_s = @qtmds_s@
 AUTOMAKE_OPTIONS = foreign
 
 # These should be installed and distributed.
-ice9_sources =  	and-let*.scm boot-9.scm calling.scm common-list.scm debug.scm		emacs.scm expect.scm getopt-gnu-style.scm getopt-long.scm		hcons.scm lineio.scm ls.scm mapping.scm optargs.scm poe.scm		psyntax.pp psyntax.ss q.scm r4rs.scm readline.scm regex.scm		runq.scm session.scm slib.scm string-fun.scm syncase.scm		tags.scm threads.scm
+ice9_sources =  	and-let*.scm boot-9.scm calling.scm common-list.scm debug.scm		emacs.scm expect.scm format.scm getopt-gnu-style.scm			getopt-long.scm hcons.scm lineio.scm ls.scm mapping.scm			optargs.scm poe.scm psyntax.pp psyntax.ss q.scm r4rs.scm		readline.scm regex.scm runq.scm session.scm slib.scm			string-case.scm string-fun.scm syncase.scm tags.scm			threads.scm
 
 
 # These should be installed, but not distributed.