diff --git a/product/ERP5/Document/Capacity.py b/product/ERP5/Document/Capacity.py
index b60b98511b82e8e0259b86ab8048e9451417f2cd..43d5f0c6eed2e67d756700696ff48bddd141c03b 100644
--- a/product/ERP5/Document/Capacity.py
+++ b/product/ERP5/Document/Capacity.py
@@ -39,6 +39,8 @@ class Capacity(XMLObject):
     """
         Mix-in
     """
+    meta_type = 'ERP5 Capacity'
+    
     isCapacity = 1
 
     # Declarative security