diff --git a/product/ERP5/Document/PaySheetModelLine.py b/product/ERP5/Document/PaySheetModelLine.py
index e7813f30ca8fbd24ab34a1fceb0467f3992302fc..1fca0c9ca3e19c8a7bb644c68efe0c0b97b1f2f7 100644
--- a/product/ERP5/Document/PaySheetModelLine.py
+++ b/product/ERP5/Document/PaySheetModelLine.py
@@ -61,6 +61,7 @@ class PaySheetModelLine(TradeModelLine):
                     , PropertySheet.Price
                     , PropertySheet.VariationRange
                     , PropertySheet.MappedValue
+                    , PropertySheet.TradeModelLine
                     , PropertySheet.PaySheetModelLine
                     , PropertySheet.Predicate
                     , PropertySheet.Reference