diff --git a/runtime/syntax/sd.vim b/runtime/syntax/sd.vim
index bb201ca..7fa0e04 100644
--- a/runtime/syntax/sd.vim
+++ b/runtime/syntax/sd.vim
@@ -3,7 +3,7 @@
 " License: This file can be redistribued and/or modified under the same terms
 "   as Vim itself.
 " URL: http://netstudent.polito.it/vim_syntax/
-" Last Change: 2006-09-27
+" Last Change: 2012 Feb 03 by Thilo Six
 
 if version < 600
         syntax clear
@@ -11,6 +11,9 @@
         finish
 endif
 
+let s:cpo_save = &cpo
+set cpo&vim
+
 " Always ignore case
 syn case ignore
 
@@ -24,13 +27,13 @@
 syn match sdIP contained /\%(\d\{1,4}\.\)\{3}\d\{1,4}/ contains=@sdIPCluster
 
 " Statements
-syn keyword sdStatement AGGREGATE AUDIO_CHANNELS 
+syn keyword sdStatement AGGREGATE AUDIO_CHANNELS
 syn keyword sdStatement BYTE_PER_PCKT BIT_PER_SAMPLE BITRATE
 syn keyword sdStatement CLOCK_RATE CODING_TYPE CREATOR
 syn match sdStatement /^\s*CODING_TYPE\>/ nextgroup=sdCoding skipwhite
 syn match sdStatement /^\s*ENCODING_NAME\>/ nextgroup=sdEncoding skipwhite
 syn keyword sdStatement FILE_NAME FRAME_LEN FRAME_RATE FORCE_FRAME_RATE
-syn keyword sdStatement LICENSE 
+syn keyword sdStatement LICENSE
 syn match sdStatement /^\s*MEDIA_SOURCE\>/ nextgroup=sdSource skipwhite
 syn match sdStatement /^\s*MULTICAST\>/ nextgroup=sdIP skipwhite
 syn keyword sdStatement PAYLOAD_TYPE PKT_LEN PRIORITY
@@ -73,3 +76,6 @@
 endif
 
 let b:current_syntax = "sd"
+
+let &cpo = s:cpo_save
+unlet s:cpo_save