diff --git a/runtime/syntax/clean.vim b/runtime/syntax/clean.vim
index 233ecbd..10dc9ca 100644
--- a/runtime/syntax/clean.vim
+++ b/runtime/syntax/clean.vim
@@ -2,7 +2,7 @@
 " Language:		Clean
 " Author:		Pieter van Engelen <pietere@sci.kun.nl>
 " Co-Author:	Arthur van Leeuwen <arthurvl@sci.kun.nl>
-" Last Change:	Fri Sep 29 11:35:34 CEST 2000
+" Last Change:	2011 Dec 25 by Thilo Six
 
 " For version 5.x: Clear all syntax items
 " For version 6.x: Quit when a syntax file was already loaded
@@ -12,6 +12,9 @@
   finish
 endif
 
+let s:cpo_save = &cpo
+set cpo&vim
+
 " Some Clean-keywords
 syn keyword cleanConditional if case
 syn keyword cleanLabel let! with where in of
@@ -91,4 +94,6 @@
 
 let b:current_syntax = "clean"
 
+let &cpo = s:cpo_save
+unlet s:cpo_save
 " vim: ts=4