diff --git a/addons/mail/models/res_groups.py b/addons/mail/models/res_groups.py
index a79f129581c..d6134517d45 100644
--- a/addons/mail/models/res_groups.py
+++ b/addons/mail/models/res_groups.py
@@ -13,11 +13,11 @@ class ResGroups(models.Model):
     _inherit = 'res.groups'
     _description = 'Access Groups'
 
-    def write(self, vals, context=None):
-        write_res = super(ResGroups, self).write(vals)
+    def write(self, vals):
+        res = super(ResGroups, self).write(vals)
         if vals.get('users'):
             # form: {'group_ids': [(3, 10), (3, 3), (4, 10), (4, 3)]} or {'group_ids': [(6, 0, [ids]}
             user_ids = [command[1] for command in vals['users'] if command[0] == 4]
             user_ids += [id for command in vals['users'] if command[0] == 6 for id in command[2]]
             self.env['mail.channel'].search([('group_ids', 'in', self._ids)])._subscribe_users_automatically()
-        return write_res
+        return res