diff --git a/addons/point_of_sale/tests/test_point_of_sale_flow.py b/addons/point_of_sale/tests/test_point_of_sale_flow.py
index 976dbe5c081..7646d0c0c13 100644
--- a/addons/point_of_sale/tests/test_point_of_sale_flow.py
+++ b/addons/point_of_sale/tests/test_point_of_sale_flow.py
@@ -356,12 +356,13 @@ class TestPointOfSaleFlow(TestPointOfSaleCommon):
         self.assertFalse(self.pos_order_pos1.invoice_id, 'Invoice should not be attached to order.')
 
         # I generate an invoice from the order
-        self.invoice = self.pos_order_pos1.action_pos_order_invoice()
+        res = self.pos_order_pos1.action_pos_order_invoice()
+        self.assertIn('res_id', res, "No invoice created")
 
         # I test that the total of the attached invoice is correct
-        self.amount_total = self.pos_order_pos1.amount_total
+        invoice = self.env['account.invoice'].browse(res['res_id'])
         self.assertEqual(
-            float_compare(self.amount_total, 1752.75, precision_digits=2), 0, "Invoice not correct")
+            float_compare(invoice.amount_total, 1752.75, precision_digits=2), 0, "Invoice not correct")
 
         """In order to test the reports on Bank Statement defined in point_of_sale module, I create a bank statement line, confirm it and print the reports"""