diff --git a/runtime/ftplugin/aspvbs.vim b/runtime/ftplugin/aspvbs.vim
index 2b841ef..660dab4 100644
--- a/runtime/ftplugin/aspvbs.vim
+++ b/runtime/ftplugin/aspvbs.vim
@@ -57,3 +57,4 @@
 
 " Restore the saved compatibility options.
 let &cpo = s:save_cpo
+unlet s:save_cpo