diff --git a/addons/mail/models/mail_channel.py b/addons/mail/models/mail_channel.py
index 6012dc9c22b..cd57fc38bf8 100644
--- a/addons/mail/models/mail_channel.py
+++ b/addons/mail/models/mail_channel.py
@@ -251,7 +251,7 @@ class Channel(models.Model):
             author = self.env['res.partner'].browse(message_dict.get('author_id', False))
             if not author or author not in self.channel_partner_ids:
                 return {
-                    'error_mesage': _('restricted to channel members'),
+                    'error_message': _('restricted to channel members'),
                 }
             return True
         return super(Channel, self)._alias_check_contact(message, message_dict, alias)