diff --git a/product/ERP5/Document/Delivery.py b/product/ERP5/Document/Delivery.py
index 9012cce956d2b4236bee76d2d5fd9645cf7e8246..217f144c619243e27226b4488641636fdec607bc 100755
--- a/product/ERP5/Document/Delivery.py
+++ b/product/ERP5/Document/Delivery.py
@@ -645,7 +645,7 @@ class Delivery(XMLObject, ImmobilisationDelivery):
     # be reviewed if we plan to configure movement groups in the zmi
     security.declareProtected( Permissions.ModifyPortalContent,
                                'setRootCausalityValueList')
-    def setRootCausalityValueList(self):
+    def setRootCausalityValueList(self,value):
       """
       This 
       """