diff --git a/autoload/xolox/notes.vim b/autoload/xolox/notes.vim
index 315bf50..71d6d25 100644
--- a/autoload/xolox/notes.vim
+++ b/autoload/xolox/notes.vim
@@ -6,7 +6,7 @@
 " Note: This file is encoded in UTF-8 including a byte order mark so
 " that Vim loads the script using the right encoding transparently.
 
-let g:xolox#notes#version = '0.23.8'
+let g:xolox#notes#version = '0.23.9'
 let g:xolox#notes#url_pattern = '\<\(mailto:\|javascript:\|\w\{3,}://\)\(\S*\w\)\+/\?'
 let s:scriptdir = expand('<sfile>:p:h')
 
diff --git a/ftplugin/notes.vim b/ftplugin/notes.vim
index 663c171..e6f11a9 100644
--- a/ftplugin/notes.vim
+++ b/ftplugin/notes.vim
@@ -1,6 +1,6 @@
 " Vim file type plug-in
 " Author: Peter Odding <peter@peterodding.com>
-" Last Change: May 16, 2013
+" Last Change: June 18, 2014
 " URL: http://peterodding.com/code/vim/notes/
 
 if exists('b:did_ftplugin')
@@ -73,6 +73,7 @@ endif
 if g:notes_smart_quotes && xolox#notes#unicode_enabled()
   inoremap <buffer> -> →
   inoremap <buffer> <- ←
+  inoremap <buffer> <-> ↔
   let b:undo_ftplugin .= ' | execute "iunmap <buffer> ->"'
   let b:undo_ftplugin .= ' | execute "iunmap <buffer> <-"'
 endif