diff --git a/account_banking_mandate/models/account_banking_mandate.py b/account_banking_mandate/models/account_banking_mandate.py
index f372f1192..e8aaa89d9 100644
--- a/account_banking_mandate/models/account_banking_mandate.py
+++ b/account_banking_mandate/models/account_banking_mandate.py
@@ -56,8 +56,8 @@ class AccountBankingMandate(models.Model):
         comodel_name='res.partner.bank', string='Bank Account',
         track_visibility='onchange')
     partner_id = fields.Many2one(
-        comodel_name='res.partner', relation='partner_bank_id.partner_id',
-        string='Partner', readonly=True, store=True)
+        comodel_name='res.partner', related='partner_bank_id.partner_id',
+        string='Partner', store=True)
     company_id = fields.Many2one(
         comodel_name='res.company', string='Company', required=True,
         default=lambda self: self.env['res.company']._company_default_get(
diff --git a/account_banking_mandate/views/account_banking_mandate_view.xml b/account_banking_mandate/views/account_banking_mandate_view.xml
index fbb942b10..6435da6b0 100644
--- a/account_banking_mandate/views/account_banking_mandate_view.xml
+++ b/account_banking_mandate/views/account_banking_mandate_view.xml
@@ -31,7 +31,7 @@
 						<field name="company_id" groups="base.group_multi_company"/>
 						<field name="partner_bank_id"
 							invisible="context.get('mandate_bank_partner_view')" />
-						<field name="partner_id" invisible="context.get('mandate_bank_partner_view')"/>
+						<field name="partner_id" invisible="context.get('mandate_bank_partner_view')" readonly="True"/>
 						<field name="signature_date"/>
 						<field name="scan"/>
 						<field name="last_debit_date"/>