diff --git a/addons/account_check_printing/models/account_payment.py b/addons/account_check_printing/models/account_payment.py
index d3063f7a..84728153 100644
--- a/addons/account_check_printing/models/account_payment.py
+++ b/addons/account_check_printing/models/account_payment.py
@@ -9,7 +9,7 @@ class AccountRegisterPayments(models.TransientModel):
     _inherit = "account.register.payments"
 
     check_amount_in_words = fields.Char(string="Amount in Words")
-    check_manual_sequencing = fields.Boolean(related='journal_id.check_manual_sequencing')
+    check_manual_sequencing = fields.Boolean(related='journal_id.check_manual_sequencing', readonly=1)
     # Note: a check_number == 0 means that it will be attributed when the check is printed
     check_number = fields.Integer(string="Check Number", readonly=True, copy=False, default=0,
         help="Number of the check corresponding to this payment. If your pre-printed check are not already numbered, "
@@ -42,7 +42,7 @@ class AccountPayment(models.Model):
     _inherit = "account.payment"
 
     check_amount_in_words = fields.Char(string="Amount in Words")
-    check_manual_sequencing = fields.Boolean(related='journal_id.check_manual_sequencing')
+    check_manual_sequencing = fields.Boolean(related='journal_id.check_manual_sequencing', readonly=1)
     check_number = fields.Integer(string="Check Number", readonly=True, copy=False,
         help="The selected journal is configured to print check numbers. If your pre-printed check paper already has numbers "
              "or if the current numbering is wrong, you can change it in the journal configuration page.")