diff --git a/product/ERP5/Document/OrderRule.py b/product/ERP5/Document/OrderRule.py
index f3830a92e8c3d8e6d270b2356af2ca82fe023231..8f5da5331ebc09b7c7ceb9fc6c235c4f9caaa226 100755
--- a/product/ERP5/Document/OrderRule.py
+++ b/product/ERP5/Document/OrderRule.py
@@ -251,6 +251,6 @@ An ERP5 Rule..."""
       return 1
 
     def isDeliverable(self, m):
-      if m.getSimulationState() in m.getPortalDraftOrderState():
+      if m.getSimulationState() in m.getPortalDraftOrderStateList():
         return 0
       return 1