diff --git a/modules/purchase_trade/lot.py b/modules/purchase_trade/lot.py
index afa77a2..b01633a 100755
--- a/modules/purchase_trade/lot.py
+++ b/modules/purchase_trade/lot.py
@@ -2020,7 +2020,7 @@ class LotShipping(Wizard):
                 if self.ship.quantity:
                     shipped_quantity = self.ship.quantity
                 if shipped_quantity == 0:
-                    shipped_quantity = Decimal(r.r_lot_matched)
+                    shipped_quantity = Decimal(str(r.r.r_lot_matched)).quantize(Decimal("0.00001"))
                 if self.ship.shipment == 'in':
                     shipment_origin = 'stock.shipment.in,'+str(self.ship.shipment_in.id)
                 elif self.ship.shipment == 'out':