diff --git a/bin/addons/base/ir/ir_model.py b/bin/addons/base/ir/ir_model.py
index 8df05b6b082..40ce882e280 100644
--- a/bin/addons/base/ir/ir_model.py
+++ b/bin/addons/base/ir/ir_model.py
@@ -435,7 +435,7 @@ class ir_model_data(osv.osv):
         ids = self.search(cr, uid, [('module','=',module),('name','=', xml_id)])
         assert len(ids)==1, '%d reference(s) to %s.%s. You should have one and only one !' % (len(ids), module, xml_id)
         return ids[0]
-    _get_id = tools.cache(skiparg=3)(_get_id)
+    _get_id = tools.cache(skiparg=2)(_get_id)
 
     def _update_dummy(self,cr, uid, model, module, xml_id=False, store=True):
         if not xml_id: