diff --git a/FHEM/10_FS20.pm b/FHEM/10_FS20.pm
index 678991d07..295988637 100755
--- a/FHEM/10_FS20.pm
+++ b/FHEM/10_FS20.pm
@@ -1,4 +1,5 @@
 ##############################################
+# $Id$
 package main;
 
 use strict;