diff --git a/runtime/autoload/ada.vim b/runtime/autoload/ada.vim
index 8f525f4..1f8234a 100644
--- a/runtime/autoload/ada.vim
+++ b/runtime/autoload/ada.vim
@@ -29,6 +29,8 @@
 if version < 700
    finish
 endif 
+let s:keepcpo= &cpo
+set cpo&vim
 
 " Section: Constants {{{1
 "
@@ -619,6 +621,9 @@
 lockvar! g:ada#Keywords
 lockvar! g:ada#Ctags_Kinds
 
+let &cpo = s:keepcpo
+unlet s:keepcpo
+
 finish " 1}}}
 
 "------------------------------------------------------------------------------