diff --git a/erpnext/erpnext_integrations/doctype/amazon_mws_settings/amazon_methods.py b/erpnext/erpnext_integrations/doctype/amazon_mws_settings/amazon_methods.py
index 9afa32b..1c39d88 100644
--- a/erpnext/erpnext_integrations/doctype/amazon_mws_settings/amazon_methods.py
+++ b/erpnext/erpnext_integrations/doctype/amazon_mws_settings/amazon_methods.py
@@ -434,6 +434,7 @@
 	return final_order_items
 
 def get_item_code(order_item):
+	sku = order_item.SellerSKU
 	item_code = frappe.db.get_value("Item", {"item_code": sku}, "item_code")
 	if item_code:
 		return item_code