diff --git a/openerp/addons/base/ir/ir_ui_view.py b/openerp/addons/base/ir/ir_ui_view.py
index 766b8a025bb..cfabb3f5fd4 100644
--- a/openerp/addons/base/ir/ir_ui_view.py
+++ b/openerp/addons/base/ir/ir_ui_view.py
@@ -127,7 +127,7 @@ class view(osv.osv):
         return True
 
     _constraints = [
-        #(_check_xml, 'Invalid XML for View Architecture!', ['arch'])
+        (_check_xml, 'Invalid XML for View Architecture!', ['arch'])
     ]
 
     def _auto_init(self, cr, context=None):