diff --git a/product/ERP5/Document/BusinessTemplate.py b/product/ERP5/Document/BusinessTemplate.py
index 524a34f729904edf2b9e2806c6d239d6d204fdeb..7da93bc8f08fd7842752d144f96219f5bf4a2159 100644
--- a/product/ERP5/Document/BusinessTemplate.py
+++ b/product/ERP5/Document/BusinessTemplate.py
@@ -4331,7 +4331,7 @@ Business Template is a set of definitions, such as skins, portal types and categ
         prop_type = prop['type']
         id = prop['id']
         if id in ('id', 'uid', 'rid', 'sid', 'id_group', 'last_id',
-                  'install_object_list_list'):
+                  'install_object_list_list', 'id_generator'):
           continue
         value = self.getProperty(id)
         if prop_type in ('text', 'string', 'int', 'boolean'):