diff --git a/account_payment_order/models/account_move_line.py b/account_payment_order/models/account_move_line.py
index 64c6b8807..e63733bb3 100644
--- a/account_payment_order/models/account_move_line.py
+++ b/account_payment_order/models/account_move_line.py
@@ -31,7 +31,7 @@ class AccountMoveLine(models.Model):
             if (
                 ml.move_id.move_type in ("in_invoice", "in_refund")
                 and not ml.reconciled
-                and ml.payment_mode_id.payment_order_ok
+                and (ml.payment_mode_id.payment_order_ok or not ml.payment_mode_id)
                 and ml.account_id.internal_type in ("receivable", "payable")
                 and not any(
                     p_state in ("draft", "open", "generated")