diff --git a/move.py b/move.py
index 3ee1900..261de81 100644
--- a/move.py
+++ b/move.py
@@ -152,6 +152,8 @@ class ShipmentOut(metaclass=PoolMeta):
             for move in shipment.inventory_moves:
                 if move.product_equipment and move.equipment:
                     serial = True
+                elif not move.product_equipment:
+                    serial = True
                 else:
                     serial = False