diff --git a/product/ERP5Type/PropertySheet/Base.py b/product/ERP5Type/PropertySheet/Base.py
index 37f0488d0d868fd3ea8fc124b8fcc43c5b98b0ee..cfbb3c8c4ce06fae0b45929dd57059ea0a884255 100755
--- a/product/ERP5Type/PropertySheet/Base.py
+++ b/product/ERP5Type/PropertySheet/Base.py
@@ -40,6 +40,6 @@ class Base:
             'mode'        : '' },
         {   'id'          : 'uid',
             'description' : 'Unique ID of the object in the ZSQLCatalog',
-            'type'        : 'int',
+            'type'        : 'long',
             'mode'        : '' },
     )