diff --git a/lzoconf.h b/lzoconf.h
--- a/lzoconf.h
+++ b/lzoconf.h
@@ -1,3 +1,5 @@
+/* $Id$ */
+
 /* lzoconf.h -- configuration for the LZO real-time data compression library
 
    This file is part of the LZO real-time data compression library.