diff --git a/runtime/ftplugin/dosbatch.vim b/runtime/ftplugin/dosbatch.vim
index d83dc3b..dbc02d8 100644
--- a/runtime/ftplugin/dosbatch.vim
+++ b/runtime/ftplugin/dosbatch.vim
@@ -1,7 +1,7 @@
 " Vim filetype plugin file
 " Language:    MS-DOS .bat files
 " Maintainer:  Mike Williams <mrw@eandem.co.uk>
-" Last Change: 24th April 2012
+" Last Change: 8th May 2012
 
 " Only do this when not done yet for this buffer
 if exists("b:did_ftplugin")
@@ -11,6 +11,9 @@
 " Don't load another plugin for this buffer
 let b:did_ftplugin = 1
 
+let s:cpo_save = &cpo
+set cpo&vim
+
 " BAT comment formatting
 setlocal comments=b:rem,b:@rem,b:REM,b:@REM,:::
 setlocal formatoptions-=t formatoptions+=rol
@@ -20,4 +23,8 @@
   let b:browsefilter = "DOS Batch Files (*.bat, *.cmd)\t*.bat;*.cmd\nAll Files (*.*)\t*.*\n"
 endif
 
-let b:undo_ftplugin = "setlocal comments< formatoptions< | unlet! b:browsefiler"
+let b:undo_ftplugin = "setlocal comments< formatoptions<"
+    \ . "| unlet! b:browsefiler"
+
+let &cpo = s:cpo_save
+unlet s:cpo_save