diff --git a/runtime/syntax/bib.vim b/runtime/syntax/bib.vim
index cf4bba8..3743fb0 100644
--- a/runtime/syntax/bib.vim
+++ b/runtime/syntax/bib.vim
@@ -2,7 +2,7 @@
 " Language:	BibTeX (bibliographic database format for (La)TeX)
 " Maintainer:	Bernd Feige <Bernd.Feige@gmx.net>
 " Filenames:	*.bib
-" Last Change:	Mar 23, 2011
+" Last Change:	2011 Dec 25
 
 " Thanks to those who pointed out problems with this file or supplied fixes!
 
@@ -16,6 +16,9 @@
   finish
 endif
 
+let s:cpo_save = &cpo
+set cpo&vim
+
 " Ignore case
 syn case ignore
 
@@ -93,3 +96,6 @@
 endif
 
 let b:current_syntax = "bib"
+
+let &cpo = s:cpo_save
+unlet s:cpo_save