diff --git a/mail_usability/__manifest__.py b/mail_usability/__manifest__.py
index 3cc2d98..95afdd1 100644
--- a/mail_usability/__manifest__.py
+++ b/mail_usability/__manifest__.py
@@ -1,11 +1,11 @@
-# Copyright 2016-2021 Akretion France (http://www.akretion.com)
+# Copyright 2016-2022 Akretion France (http://www.akretion.com)
 # @author Benoît Guillot <benoit.guillot@akretion.com>
 # @author Alexis de Lattre <alexis.delattre@akretion.com>
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
 {
     'name': 'Mail Usability',
-    'version': '14.0.1.0.0',
+    'version': '16.0.1.0.0',
     'category': 'Productivity/Discuss',
     'license': 'AGPL-3',
     'summary': 'Usability improvements on mails',
@@ -28,5 +28,5 @@ Small usability improvements on mails:
         #'wizard/email_template_preview_view.xml',
         #'wizard/mail_compose_message_view.xml',
         ],
-    'installable': False,
+    'installable': True,
 }
diff --git a/mail_usability/models/mail_template.py b/mail_usability/models/mail_template.py
index 14f6c2f..2468860 100644
--- a/mail_usability/models/mail_template.py
+++ b/mail_usability/models/mail_template.py
@@ -1,4 +1,4 @@
-# Copyright 2018-2021 Akretion France (http://www.akretion.com).
+# Copyright 2018-2022 Akretion France (http://www.akretion.com).
 # @author Sébastien BEAU <sebastien.beau@akretion.com>
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
diff --git a/mail_usability/models/res_partner.py b/mail_usability/models/res_partner.py
index ffdbb01..b0bf98f 100644
--- a/mail_usability/models/res_partner.py
+++ b/mail_usability/models/res_partner.py
@@ -1,4 +1,4 @@
-# Copyright 2015-2021 Akretion France (http://www.akretion.com/)
+# Copyright 2015-2022 Akretion France (http://www.akretion.com/)
 # @author: Alexis de Lattre <alexis.delattre@akretion.com>
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
@@ -11,10 +11,8 @@ class ResPartner(models.Model):
     # tracking=True is handled in the 'mail' module, so it's better
     # to have this in mail_usability than in base_usability
     name = fields.Char(tracking=True)
-    parent_id = fields.Many2one(tracking=True)
     ref = fields.Char(tracking=True)
     lang = fields.Selection(tracking=True)
-    vat = fields.Char(tracking=True)
     street = fields.Char(tracking=True)
     street2 = fields.Char(tracking=True)
     zip = fields.Char(tracking=True)