diff --git a/addons/account/models/account.py b/addons/account/models/account.py
index f41b3710777..5e158e158f2 100644
--- a/addons/account/models/account.py
+++ b/addons/account/models/account.py
@@ -102,7 +102,7 @@ class AccountAccount(models.Model):
     deprecated = fields.Boolean(index=True, default=False)
     user_type_id = fields.Many2one('account.account.type', string='Type', required=True, oldname="user_type", 
         help="Account Type is used for information purpose, to generate country-specific legal reports, and set the rules to close a fiscal year and generate opening entries.")
-    internal_type = fields.Selection(related='user_type_id.type', store=True)
+    internal_type = fields.Selection(related='user_type_id.type', store=True, readonly=True)
     #has_unreconciled_entries = fields.Boolean(compute='_compute_has_unreconciled_entries',
     #    help="The account has at least one unreconciled debit and credit since last time the invoices & payments matching was performed.")
     last_time_entries_checked = fields.Datetime(string='Latest Invoices & Payments Matching Date', readonly=True, copy=False,