diff --git a/sm5/cvs-script b/sm5/cvs-script
index 5240e0ee6ce046c56c808a4c884d525f03be4fd6..6974e72e239dd9bb9e8220f35c9237c7252d1f34 100755
--- a/sm5/cvs-script
+++ b/sm5/cvs-script
@@ -1,5 +1,6 @@
-#!/usr/local/bin/bash
-
+#!/bin/bash
+# execute this script in the current shell, using for example
+# . cvs_script
+unset CVS_SERVER
 export CVS_RSH=ssh
-export CVS_SERVER=/usr/bin/cvs
 export CVSROOT=:ext:ballen4705@cvs.smartmontools.sourceforge.net:/cvsroot/smartmontools