diff --git a/addons/crm_helpdesk/crm_helpdesk.py b/addons/crm_helpdesk/crm_helpdesk.py
index f6106db5903..38352691db0 100644
--- a/addons/crm_helpdesk/crm_helpdesk.py
+++ b/addons/crm_helpdesk/crm_helpdesk.py
@@ -76,7 +76,9 @@ class crm_helpdesk(osv.osv, crm.crm_case):
                                   help='The state is set to \'Draft\', when a case is created.\
                                   \nIf the case is in progress the state is set to \'Open\'.\
                                   \nWhen the case is over, the state is set to \'Done\'.\
-                                  \nIf the case needs to be reviewed then the state is set to \'Pending\'.'), 
+                                  \nIf the case needs to be reviewed then the state is set to \'Pending\'.'),
+            'message_ids': fields.one2many('mailgate.message', 'res_id', 'Messages', domain=[('history', '=', True),('model','=',_name)]),
+            'log_ids': fields.one2many('mailgate.message', 'res_id', 'Logs', domain=[('history', '=', False),('model','=',_name)]),
     }
 
     _defaults = {