diff --git a/erpnext/shopping_cart/cart.py b/erpnext/shopping_cart/cart.py
index 254d7b7..cc3205c 100644
--- a/erpnext/shopping_cart/cart.py
+++ b/erpnext/shopping_cart/cart.py
@@ -66,7 +66,7 @@
 	sales_order = frappe.get_doc(_make_sales_order(quotation.name, ignore_permissions=True))
 	for item in sales_order.get("items"):
 		item.reserved_warehouse, is_stock_item = frappe.db.get_value("Item",
-			item.item_code, ["website_warehouse", "is_stock_item"]) or None, None
+			item.item_code, ["website_warehouse", "is_stock_item"])
 
 		if is_stock_item:
 			item_stock = get_qty_in_stock(item.item_code, "website_warehouse")