diff --git a/modules/web_shop_shopify/sale.py b/modules/web_shop_shopify/sale.py
index c8193eaa68..7b0e4f7693 100644
--- a/modules/web_shop_shopify/sale.py
+++ b/modules/web_shop_shopify/sale.py
@@ -277,7 +277,7 @@ class Sale(IdentifierMixin, metaclass=PoolMeta):
             for move in line.moves:
                 if move.state == 'done':
                     quantity -= Uom.compute_qty(
-                        move.uom, move.quantity, line.unit)
+                        move.unit, move.quantity, line.unit)
             quantity = min(fulfillable_quantity, quantity)
             if quantity > 0:
                 yield {
diff --git a/modules/web_shop_shopify/stock.py b/modules/web_shop_shopify/stock.py
index 0645a226fe..7ddcfadaa2 100644
--- a/modules/web_shop_shopify/stock.py
+++ b/modules/web_shop_shopify/stock.py
@@ -149,7 +149,7 @@ class Move(metaclass=PoolMeta):
             return
         identifier = self.origin.shopify_identifier
         quantity = int(Uom.compute_qty(
-                self.uom, self.quantity, self.origin.unit))
+                self.unit, self.quantity, self.origin.unit))
         for fulfillment_order in fulfillment_orders:
             if fulfillment_order.assigned_location_id != location_id:
                 continue