diff --git a/sbin/ipfw/ipfw.c b/sbin/ipfw/ipfw.c
index b19989ae7278..e0b2c507c4de 100644
--- a/sbin/ipfw/ipfw.c
+++ b/sbin/ipfw/ipfw.c
@@ -13,6 +13,9 @@
  * This software is provided ``AS IS'' without any warranties of any kind.
  *
  * NEW command line interface for IP firewall facility
+ *
+ * $Id$
+ *
  */
 
 #include <stdio.h>