diff --git a/modules/web_shop_shopify/sale.py b/modules/web_shop_shopify/sale.py
index 167a6e9460..c2911dcd24 100644
--- a/modules/web_shop_shopify/sale.py
+++ b/modules/web_shop_shopify/sale.py
@@ -898,7 +898,7 @@ class Line(IdentifierMixin, metaclass=PoolMeta):
             line.sale = sale
             line.shopify_identifier = gid2id(line_item['id'])
             line.product = None
-        line.shopify_warehouse = warehouse
+        setattr_changed(line, 'shopify_warehouse', warehouse)
         assert line.shopify_identifier == gid2id(line_item['id'])
         if line_item['variant'] and line_item['variant']['id']:
             if product := Product.search_shopify_identifier(