--- a/src/rail.cpp	Wed Mar 28 20:12:32 2007 +0000
+++ b/src/rail.cpp	Wed Mar 28 20:41:35 2007 +0000
@@ -1,5 +1,7 @@
 /* $Id$ */
 
+/** @file rail.cpp */
+
 #include "stdafx.h"
 #include "openttd.h"
 #include "bridge_map.h"