diff --git a/odoo/addons/base/models/ir_qweb.py b/odoo/addons/base/models/ir_qweb.py
index 1ee4a05dfdc..74a972a7d5c 100644
--- a/odoo/addons/base/models/ir_qweb.py
+++ b/odoo/addons/base/models/ir_qweb.py
@@ -376,7 +376,7 @@ def render(template_name, values, load, **options):
         _Registry__cache = {}
 
     class MockIrQWeb(IrQWeb):
-        _name = 'ir.qweb.mock'
+        _register = False               # not visible in real registry
 
         pool = MockPool()