=== modified file 'mail/mail_thread.py'
--- mail/mail_thread.py	2013-12-09 10:50:31 +0000
+++ mail/mail_thread.py	2013-12-17 23:11:01 +0000
@@ -348,7 +348,7 @@
 
         # automatic logging unless asked not to (mainly for various testing purpose)
         if not context.get('mail_create_nolog'):
-            self.message_post(cr, uid, thread_id, body=_('%s created') % (self._description), context=context)
+            self.message_post(cr, uid, thread_id, body=_('%s created') % (_(self._description)), context=context)
 
         # subscribe uid unless asked not to
         if not context.get('mail_create_nosubscribe'):