diff --git a/product/ERP5/PropertySheet/WebSite.py b/product/ERP5/PropertySheet/WebSite.py
index 10775f8e2904807631f19a065b85c5137bcf4705..e921a5613382f7f63fa7525524aa8c8b73370dac 100644
--- a/product/ERP5/PropertySheet/WebSite.py
+++ b/product/ERP5/PropertySheet/WebSite.py
@@ -27,7 +27,7 @@
 
 class WebSite:
     """
-        PropertySheetTemplate properties for all ERP5 objects
+        WebSite properties for all ERP5 objects
     """
 
     _properties = (
@@ -49,3 +49,5 @@ class WebSite:
             'mode'        : '' },
     )
 
+    _categories = ('aggregate', )
+