diff --git a/web_responsive/models/inherited_res_users.py b/web_responsive/models/inherited_res_users.py
index f567f3aa..7b80a979 100644
--- a/web_responsive/models/inherited_res_users.py
+++ b/web_responsive/models/inherited_res_users.py
@@ -11,3 +11,16 @@ class ResUsers(models.Model):
         ('normal', 'Normal'),
         ('sided', 'Sided'),
     ], string="Chatter Position", default='normal')
+
+    def __init__(self, pool, cr):
+        """ Override of __init__ to add access rights.
+        Access rights are disabled by default, but allowed on some specific
+        fields defined in self.SELF_{READ/WRITE}ABLE_FIELDS.
+        """
+        super(ResUsers, self).__init__(pool, cr)
+        # duplicate list to avoid modifying the original reference
+        type(self).SELF_WRITEABLE_FIELDS = list(self.SELF_WRITEABLE_FIELDS)
+        type(self).SELF_WRITEABLE_FIELDS.extend(['chatter_position'])
+        # duplicate list to avoid modifying the original reference
+        type(self).SELF_READABLE_FIELDS = list(self.SELF_READABLE_FIELDS)
+        type(self).SELF_READABLE_FIELDS.extend(['chatter_position'])
diff --git a/web_responsive/static/src/js/web_responsive.js b/web_responsive/static/src/js/web_responsive.js
index 56e60fac..bbc86175 100644
--- a/web_responsive/static/src/js/web_responsive.js
+++ b/web_responsive/static/src/js/web_responsive.js
@@ -10,7 +10,6 @@ odoo.define('web_responsive', function(require) {
     var core = require('web.core');
     var config = require('web.config');
     var ViewManager = require('web.ViewManager');
-    var Session = require('web.session');
 
     Menu.include({
 
diff --git a/web_responsive/tests/__init__.py b/web_responsive/tests/__init__.py
index 6dab214a..cabee067 100644
--- a/web_responsive/tests/__init__.py
+++ b/web_responsive/tests/__init__.py
@@ -1 +1,2 @@
 from . import test_ui
+from . import test_res_users
diff --git a/web_responsive/tests/test_res_users.py b/web_responsive/tests/test_res_users.py
new file mode 100644
index 00000000..6f4f0322
--- /dev/null
+++ b/web_responsive/tests/test_res_users.py
@@ -0,0 +1,16 @@
+# Copyright 2018 Alexandre Díaz
+# License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl.html).
+
+from odoo.tests import common
+
+
+class TestResUsers(common.TransactionCase):
+
+    def test_chatter_position_wr(self):
+        user_public = self.env.ref('base.public_user')
+
+        self.assertEqual(user_public.chatter_position, 'normal')
+        user_public.sudo(user_public).write({
+            'chatter_position': 'sided',
+        })
+        self.assertEqual(user_public.chatter_position, 'sided')
diff --git a/web_responsive/views/inherited_view_users_form_simple_modif.xml b/web_responsive/views/inherited_view_users_form_simple_modif.xml
index ac389f85..9e465ba8 100644
--- a/web_responsive/views/inherited_view_users_form_simple_modif.xml
+++ b/web_responsive/views/inherited_view_users_form_simple_modif.xml
@@ -13,7 +13,7 @@
         <field name="inherit_id" ref="base.view_users_form_simple_modif" />
         <field name="arch" type="xml">
             <xpath expr="//field[@name='email']" position="after">
-                <field name="chatter_position" />
+                <field name="chatter_position" readonly="0" />
             </xpath>
         </field>
     </record>