diff --git a/addons/mail/update.py b/addons/mail/update.py
index 3d07ce739ab..94286817648 100644
--- a/addons/mail/update.py
+++ b/addons/mail/update.py
@@ -94,7 +94,7 @@ class publisher_warranty_contract(osv.osv):
             # old behavior based on res.log; now on mail.message, that is not necessarily installed
             IMD = self.pool['ir.model.data']
             user = self.pool['res.users'].browse(cr, SUPERUSER_ID, SUPERUSER_ID)
-            poster = IMD.get_object(cr, SUPERUSER_ID, 'mail', 'group_all_employees')
+            poster = IMD.get_object(cr, SUPERUSER_ID, 'mail', 'group_all_employees', context=context, check_existence_and_raise=False)
             if not poster.exists():
                 if not user.exists():
                     return True