diff --git a/addons/crm/wizard/crm_merge_opportunities.py b/addons/crm/wizard/crm_merge_opportunities.py
index 5bcd14ee6c6..e9a957bcf24 100644
--- a/addons/crm/wizard/crm_merge_opportunities.py
+++ b/addons/crm/wizard/crm_merge_opportunities.py
@@ -130,11 +130,12 @@ class crm_merge_opportunity(osv.osv_memory):
             }
         
         #copy message into the first opportunity + merge attachement
-        for opp in tail_opportunities:
+        
+        for opp in tail_opportunities + [first_opportunity]:
             attach_ids = self.get_attachments(cr, uid, opp, context=context)
             self.set_attachements_res_id(cr, uid, first_opportunity.id, attach_ids)
             for history in opp.message_ids:
-                new_history = message_obj.copy(cr, uid, history.id, default={'res_id': first_opportunity.id, 'name' : _("From %s : %s") % (opp.name, history.name) })
+                new_history = message_obj.write(cr, uid, history.id, {'res_id': first_opportunity.id, 'name' : _("From %s : %s") % (opp.name, history.name) }, context=context)
 
         #Notification about loss of information
         details = []