diff --git a/fhem/contrib/DEBIAN/postinst b/fhem/contrib/DEBIAN/postinst
index 3be18f8b6..523ed27b3 100644
--- a/fhem/contrib/DEBIAN/postinst
+++ b/fhem/contrib/DEBIAN/postinst
@@ -1,14 +1,20 @@
 #!/bin/bash
+# $Id$
 
 set -e
 #set -x
 
+
+
 if ! getent passwd fhem >/dev/null; then
     useradd --system --home /opt/fhem --gid dialout --shell /bin/false fhem
 fi
 
 chown -R fhem:dialout /opt/fhem
 
+# remove repository entry after first installation
+sed -i /debian.fhem.de/d /etc/apt/sources.list
+
 # set up of autostart
 # Sysvinit; upstart no longer supported