diff --git a/modules/purchase_trade/sale.py b/modules/purchase_trade/sale.py
index 95799b7..0383329 100755
--- a/modules/purchase_trade/sale.py
+++ b/modules/purchase_trade/sale.py
@@ -739,7 +739,7 @@ class SaleLine(metaclass=PoolMeta):
                         lqh = LotQtHist()
                         lqh.quantity_type = lqtt[0]
                         lqh.quantity = lot.lot_quantity
-                        lqh.gross_quantity = lot.lot_quantity
+                        lqh.gross_quantity = Decimal(0) #lot.lot_quantity
                         lot.lot_hist = [lqh]
                     if line.quantity > 0:
                         Lot.save([lot])