diff --git a/vim/vimrc b/vim/vimrc
index 5b8bac8..3340943 100644
--- a/vim/vimrc
+++ b/vim/vimrc
@@ -75,7 +75,11 @@ au BufRead,BufNewFile */playbooks/*.yml set filetype=yaml.ansible
 au BufRead,BufNewFile rules.v[46] *.rules setlocal filetype=iptables
 
 if has('persistent_undo')
-  set undodir=$HOME/.vim/undo
+    let undo_dir=$HOME . "/.vim/undo"
+    if !isdirectory(undo_dir)
+        call mkdir(undo_dir , "p", 0o700)
+    endif
+    let &undodir=undo_dir
   set undofile
 endif