diff --git a/product/ERP5/Document/BusinessTemplate.py b/product/ERP5/Document/BusinessTemplate.py
index 1e982af998549b9e5a8d49ff98ad0a7f1c6cd7ad..9e58fd2bb8580a04f650726c823a7ed303d3b66d 100755
--- a/product/ERP5/Document/BusinessTemplate.py
+++ b/product/ERP5/Document/BusinessTemplate.py
@@ -514,7 +514,7 @@ class CatalogMethodTemplateItem(ObjectTemplateItem):
       if method_id in sql_clear_catalog:
         sql_clear_catalog.remove(method_id)
 
-      if method_id in catalog.filter_dict.keys():
+      if catalog.filter_dict.has_key(method_id):
         del catalog.filter_dict[method_id]
 
     catalog.sql_catalog_object = tuple(sql_catalog_object)