diff --git a/addons/mail/models/ir_actions.py b/addons/mail/models/ir_actions.py
index f6fa9d4fff0..6f2b6ae136a 100644
--- a/addons/mail/models/ir_actions.py
+++ b/addons/mail/models/ir_actions.py
@@ -10,6 +10,7 @@ from odoo.exceptions import UserError, ValidationError
 class ServerActions(models.Model):
     """ Add email option in server actions. """
     _name = 'ir.actions.server'
+    _description = 'Server Action'
     _inherit = ['ir.actions.server']
 
     state = fields.Selection(selection_add=[
diff --git a/addons/mail/models/mail_alias.py b/addons/mail/models/mail_alias.py
index 2594d3162e0..0045ea87989 100644
--- a/addons/mail/models/mail_alias.py
+++ b/addons/mail/models/mail_alias.py
@@ -186,6 +186,7 @@ class AliasMixin(models.AbstractModel):
     """
     _name = 'mail.alias.mixin'
     _inherits = {'mail.alias': 'alias_id'}
+    _description = 'Email Aliases Mixin'
 
     alias_id = fields.Many2one('mail.alias', string='Alias', ondelete="restrict", required=True)
 
diff --git a/addons/mail/models/mail_channel.py b/addons/mail/models/mail_channel.py
index 3de00e9dca6..d1c3c3f6fa6 100644
--- a/addons/mail/models/mail_channel.py
+++ b/addons/mail/models/mail_channel.py
@@ -54,7 +54,7 @@ class Moderation(models.Model):
 class Channel(models.Model):
     """ A mail.channel is a discussion group that may behave like a listener
     on documents. """
-    _description = 'Discussion channel'
+    _description = 'Discussion Channel'
     _name = 'mail.channel'
     _mail_flat_thread = False
     _mail_post_access = 'read'
diff --git a/addons/mail/models/res_users.py b/addons/mail/models/res_users.py
index 11d687cbca1..18da52a96fc 100644
--- a/addons/mail/models/res_users.py
+++ b/addons/mail/models/res_users.py
@@ -16,6 +16,7 @@ class Users(models.Model):
     """
     _name = 'res.users'
     _inherit = ['res.users']
+    _description = 'Users'
 
     alias_id = fields.Many2one('mail.alias', 'Alias', ondelete="set null", required=False,
             help="Email address internally associated with this user. Incoming "\
@@ -149,6 +150,7 @@ class res_groups_mail_channel(models.Model):
     """
     _name = 'res.groups'
     _inherit = 'res.groups'
+    _description = 'Access Groups'
 
     @api.multi
     def write(self, vals, context=None):
diff --git a/addons/mail/models/update.py b/addons/mail/models/update.py
index fa8b6fd593a..54cbc98ffef 100644
--- a/addons/mail/models/update.py
+++ b/addons/mail/models/update.py
@@ -20,6 +20,7 @@ _logger = logging.getLogger(__name__)
 
 class PublisherWarrantyContract(AbstractModel):
     _name = "publisher_warranty.contract"
+    _description = 'Publisher Warranty Contract'
 
     @api.model
     def _get_message(self):
diff --git a/addons/mail_bot/models/mail_bot.py b/addons/mail_bot/models/mail_bot.py
index 6c340193809..ec012fb2f6c 100644
--- a/addons/mail_bot/models/mail_bot.py
+++ b/addons/mail_bot/models/mail_bot.py
@@ -9,6 +9,7 @@ from odoo import models, _
 
 class MailBot(models.AbstractModel):
     _name = 'mail.bot'
+    _description = 'Mail Bot'
 
     def _apply_logic(self, record, values, command=None):
         """ Apply bot logic to generate an answer (or not) for the user