diff --git a/addons/account/models/account.py b/addons/account/models/account.py
index d0b770c1df9..3e98bdf40d7 100644
--- a/addons/account/models/account.py
+++ b/addons/account/models/account.py
@@ -251,7 +251,7 @@ class AccountJournal(models.Model):
     loss_account_id = fields.Many2one('account.account', string='Loss Account', domain=[('deprecated', '=', False)], help="Used to register a loss when the ending balance of a cash register differs from what the system computes")
 
     # Bank journals fields
-    bank_account_id = fields.Many2one('res.partner.bank', string="Bank Account", ondelete='restrict')
+    bank_account_id = fields.Many2one('res.partner.bank', string="Bank Account", ondelete='restrict', copy=False)
     display_on_footer = fields.Boolean("Show in Invoices Footer", help="Display this bank account on the footer of printed documents like invoices and sales orders.")
     bank_statements_source = fields.Selection([('manual', 'Record Manually')], string='Bank Feeds')
     bank_acc_number = fields.Char(related='bank_account_id.acc_number')