diff --git a/etc/inc/cmd_chain.inc b/etc/inc/cmd_chain.inc
index c00b2cb3c2..1a64dbce45 100644
--- a/etc/inc/cmd_chain.inc
+++ b/etc/inc/cmd_chain.inc
@@ -1,5 +1,5 @@
 <?php
-
+/* $Id$ */
 /*
 	cmd_chain.inc
 	Part of pfSense