diff --git a/addons/account_check_printing/models/account_payment.py b/addons/account_check_printing/models/account_payment.py
index ea06a0a6c41..28d48cb7b58 100644
--- a/addons/account_check_printing/models/account_payment.py
+++ b/addons/account_check_printing/models/account_payment.py
@@ -123,6 +123,7 @@ class AccountPayment(models.Model):
                     FROM account_payment payment
                     JOIN account_move move ON movE.id = payment.move_id
                    WHERE journal_id = %(journal_id)s
+                   AND check_number IS NOT NULL
                 ORDER BY check_number::INTEGER DESC
                    LIMIT 1
             """, {