Workaround for https://bugs.freedesktop.org/show_bug.cgi?id=89150

--- Thunar-folder-handler.desktop.in.in.orig	2013-07-30 05:44:48 UTC
+++ Thunar-folder-handler.desktop.in.in
@@ -10,6 +10,6 @@ Terminal=false
 StartupNotify=true
 Type=Application
 Categories=System;Utility;Core;GTK;FileTools;FileManager;
-MimeType=inode/directory;
+MimeType=inode/directory;folder;
 
 # vi:set encoding=UTF-8: