diff --git a/contents/minimal-vimrc.vim b/contents/minimal-vimrc.vim
index 5c0bdb0..c110a65 100644
--- a/contents/minimal-vimrc.vim
+++ b/contents/minimal-vimrc.vim
@@ -53,11 +53,11 @@ endif
 " Put all temporary files under the same directory.
 " https://github.com/mhinz/vim-galore#handling-backup-swap-undo-and-viminfo-files
 set backup
-set backupdir   =$HOME/.vim/files/backup/
+set backupdir   =$HOME/.vim/files/backup//
 set backupext   =-vimbackup
 set backupskip  =
 set directory   =$HOME/.vim/files/swap//
 set updatecount =100
 set undofile
-set undodir     =$HOME/.vim/files/undo/
+set undodir     =$HOME/.vim/files/undo//
 set viminfo     ='100,n$HOME/.vim/files/info/viminfo