diff --git a/vim/vimrc b/vim/vimrc
index 1f7da6f..32797fb 100644
--- a/vim/vimrc
+++ b/vim/vimrc
@@ -44,7 +44,7 @@ endif
 
 if has("persistent_undo")
     set undofile
-    set undodir=$HOME/.undodir
+    set undodir=$HOME."/.undodir"
     augroup undodir
         autocmd!
         autocmd BufWritePre /tmp/* setlocal noundofile