diff --git a/addons/account/models/account_journal.py b/addons/account/models/account_journal.py
index 0f2b125f624..ce39f31adea 100644
--- a/addons/account/models/account_journal.py
+++ b/addons/account/models/account_journal.py
@@ -91,7 +91,7 @@ class AccountJournal(models.Model):
         help="If ticked, the accounting entry or invoice receives a hash as soon as it is posted and cannot be modified anymore.")
     sequence = fields.Integer(help='Used to order Journals in the dashboard view', default=10)
 
-    invoice_reference_type = fields.Selection(string='Communication Type', required=True, selection=[('none', 'Free'), ('partner', 'Based on Customer'), ('invoice', 'Based on Invoice')], default='invoice', help='You can set here the default communication that will appear on customer invoices, once validated, to help the customer to refer to that particular invoice when making the payment.')
+    invoice_reference_type = fields.Selection(string='Communication Type', required=True, selection=[('none', 'Open'), ('partner', 'Based on Customer'), ('invoice', 'Based on Invoice')], default='invoice', help='You can set here the default communication that will appear on customer invoices, once validated, to help the customer to refer to that particular invoice when making the payment.')
     invoice_reference_model = fields.Selection(string='Communication Standard', required=True, selection=[('odoo', 'Odoo'), ('euro', 'European')], default=_default_invoice_reference_model, help="You can choose different models for each type of reference. The default one is the Odoo reference.")
 
     #groups_id = fields.Many2many('res.groups', 'account_journal_group_rel', 'journal_id', 'group_id', string='Groups')