diff --git a/addons/project_issue/project_issue.py b/addons/project_issue/project_issue.py
index 7911135f5f1..8c2ef117823 100644
--- a/addons/project_issue/project_issue.py
+++ b/addons/project_issue/project_issue.py
@@ -496,7 +496,7 @@ class project_issue(base_stage, osv.osv):
                 key = maps.get(res.group(1).lower())
                 update_vals[key] = res.group(2).lower()
 
-        return super(project_issue, self).message_update(cr, uid, ids, update_vals=update_vals, context=context)
+        return super(project_issue, self).message_update(cr, uid, ids, msg, update_vals=update_vals, context=context)
 
     # -------------------------------------------------------
     # OpenChatter methods and notifications