diff --git a/portal_event_tickets/tests/common.py b/portal_event_tickets/tests/common.py
index 43979b2..161c2ef 100644
--- a/portal_event_tickets/tests/common.py
+++ b/portal_event_tickets/tests/common.py
@@ -79,9 +79,9 @@ def _create_ticket(self, ticket_type, partner, event):
             {
                 "partner_id": partner.id,
                 "note": "Invoice after delivery",
-                "payment_term_id": self.env.ref("account.account_payment_term").id,
             }
         )
+        sale_order.onchange_partner_id()
 
         # In the sale order I add some sale order lines. i choose event product
         sale_order_line = self.env["sale.order.line"].create(