diff --git a/product/ERP5/Document/SupplyLine.py b/product/ERP5/Document/SupplyLine.py
index 46e0a31e059f4c05e0f8cea41b1f2f8f4e585dad..e47881f48f6f64cd9a5104318c7505283f3c960c 100755
--- a/product/ERP5/Document/SupplyLine.py
+++ b/product/ERP5/Document/SupplyLine.py
@@ -194,6 +194,8 @@ class SupplyLine(DeliveryLine, Path):
       """
       return int(XMLMatrix.getCellRange(self, base_id=base_id) != [])
 
+    asPredicate = Path.asPredicate
+
     # For generation of matrix lines
     security.declareProtected( Permissions.ModifyPortalContent, '_setQuantityStepList' )
     def _setQuantityStepList(self, value):