diff --git a/cf/make-aclocal b/cf/make-aclocal
index 924a52a21..06aa6ab33 100644
--- a/cf/make-aclocal
+++ b/cf/make-aclocal
@@ -1,4 +1,5 @@
 #! /bin/sh
+# $Id$
 
 if [ "$#" -ne 2 ]; then
 	echo "Usage: `basename $0` proto-file output"