diff --git a/product/ERP5/Document/BaseCategory.py b/product/ERP5/Document/BaseCategory.py
index f6ac2c1133589714aa7e6d02484fd2fecff37a50..6ac8e1a955568cf9a06af24451b7558e825d632b 100755
--- a/product/ERP5/Document/BaseCategory.py
+++ b/product/ERP5/Document/BaseCategory.py
@@ -54,5 +54,7 @@ class BaseCategory(CMFBaseCategory, XMLObject):
 
     property_sheets = ( PropertySheet.Base
                       , PropertySheet.SimpleItem
-                      , PropertySheet.BaseCategory)
+                      , PropertySheet.CategoryCore
+                      , PropertySheet.BaseCategory
+                      , PropertySheet.Predicate)