diff --git a/runtime/vimrc_example.vim b/runtime/vimrc_example.vim
index 3e9b56f..27a5cfc 100644
--- a/runtime/vimrc_example.vim
+++ b/runtime/vimrc_example.vim
@@ -1,7 +1,7 @@
 " An example for a vimrc file.
 "
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last change:	2011 Apr 15
+" Last change:	2014 Feb 05
 "
 " To use it, copy it to
 "     for Unix and OS/2:  ~/.vimrc
@@ -24,7 +24,8 @@
 if has("vms")
   set nobackup		" do not keep a backup file, use versions instead
 else
-  set backup		" keep a backup file
+  set backup		" keep a backup file (restore to previous version)
+  set undofile		" keep an undo file (undo changes after closing)
 endif
 set history=50		" keep 50 lines of command line history
 set ruler		" show the cursor position all the time