diff --git a/l10n_it_pec/README.rst b/l10n_it_pec/README.rst
index e4c7cc69..a2a9fc8d 100644
--- a/l10n_it_pec/README.rst
+++ b/l10n_it_pec/README.rst
@@ -41,4 +41,4 @@ OCA, or the Odoo Community Association, is a nonprofit organization whose
 mission is to support the collaborative development of Odoo features and
 promote its widespread use.
 
-To contribute to this module, please visit https://odoo-community.org.
\ No newline at end of file
+To contribute to this module, please visit https://odoo-community.org.
diff --git a/l10n_it_pec/__init__.py b/l10n_it_pec/__init__.py
index c8b61710..d7e10c7f 100644
--- a/l10n_it_pec/__init__.py
+++ b/l10n_it_pec/__init__.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Copyright 2014 Associazione Odoo Italia (<http://www.odoo-italia.org>)
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 
diff --git a/l10n_it_pec/__manifest__.py b/l10n_it_pec/__manifest__.py
index 60179e22..98a2affb 100644
--- a/l10n_it_pec/__manifest__.py
+++ b/l10n_it_pec/__manifest__.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Copyright 2014 Associazione Odoo Italia (<http://www.odoo-italia.org>)
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 
diff --git a/l10n_it_pec/models/__init__.py b/l10n_it_pec/models/__init__.py
index 419ea2af..d54b3564 100644
--- a/l10n_it_pec/models/__init__.py
+++ b/l10n_it_pec/models/__init__.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Copyright 2014 Associazione Odoo Italia (<http://www.odoo-italia.org>)
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 
diff --git a/l10n_it_pec/models/partner.py b/l10n_it_pec/models/partner.py
index c1d89e70..5c9aff7e 100644
--- a/l10n_it_pec/models/partner.py
+++ b/l10n_it_pec/models/partner.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Copyright 2014 Associazione Odoo Italia (<http://www.odoo-italia.org>)
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 
diff --git a/l10n_it_pec/views/partner_view.xml b/l10n_it_pec/views/partner_view.xml
index b5f22e84..745f8647 100644
--- a/l10n_it_pec/views/partner_view.xml
+++ b/l10n_it_pec/views/partner_view.xml
@@ -30,7 +30,7 @@
             <field name="email" position="after">
                 <field name="pec_mail"/>
             </field>
-            <xpath expr="//div[contains(@class, 'oe_kanban_details')]/ul" position="inside">
+            <xpath expr="//div[hasclass('oe_kanban_details')]/ul" position="inside">
                 <li t-if="record.pec_mail.raw_value">
                     <a t-attf-href="mailto:#{record.pec_mail.raw_value}"><field name="pec_mail"/></a><span> (PEC)</span>
                 </li>