diff --git a/ChangeLog b/ChangeLog
index 2b093671..e6b1cb5e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2005-05-02  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
+
+	* Makefile.am (stamp-vcl): Use `diff' instead of `cmp'.
+
 2005-04-30  Gary V. Vaughan  <gary@gnu.org>
 
 	Revert the parallel installation changes from November last year:
diff --git a/Makefile.am b/Makefile.am
index 8772afa1..87396da7 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -134,7 +134,7 @@ $(srcdir)/stamp-vcl: vcl-tmp clean-ltmain-sh ChangeLog
 vcl-tmp:
 	@set dummy `$(MKSTAMP) < $(srcdir)/ChangeLog`; shift; \
 	echo "$$1" > vcl.tmp; \
-	cmp -s vcl.tmp $(srcdir)/stamp-vcl \
+	diff vcl.tmp $(srcdir)/stamp-vcl >/dev/null \
 	  || (echo "Updating stamp-vcl"; cp vcl.tmp $(srcdir)/stamp-vcl)
 	-@rm -f vcl.tmp