diff --git a/product/ERP5/Tool/RuleTool.py b/product/ERP5/Tool/RuleTool.py
index 10961ae35ed59f57df860d57ae881768b907e04a..a3e40dc0024f51558591372b0772d0355547658e 100755
--- a/product/ERP5/Tool/RuleTool.py
+++ b/product/ERP5/Tool/RuleTool.py
@@ -84,7 +84,7 @@ class RuleTool (UniqueObject, Folder):
     id = 'portal_rules'
     meta_type = 'ERP5 Rule Tool'
     portal_type = 'Rule Tool'
-    allowed_types = ( 'ERP5 Order Rule', 'ERP5 Transformation Rule', 'ERP5 Zero Stock Rule', 'ERP5 Delivery Rule')
+    allowed_types = ( 'ERP5 Order Rule', 'ERP5 Transformation Rule', 'ERP5 Zero Stock Rule', 'ERP5 Delivery Rule', 'ERP5 Amortisation Rule')
 
     # Declarative Security
     security = ClassSecurityInfo()