diff --git a/addons/mail/static/src/js/mail.js b/addons/mail/static/src/js/mail.js
index 230655cd364..0bc24ac4264 100644
--- a/addons/mail/static/src/js/mail.js
+++ b/addons/mail/static/src/js/mail.js
@@ -275,7 +275,7 @@ openerp.mail = function (session) {
             } else if (this.type == 'email' && (!this.author_id || !this.author_id[0])) {
                 this.avatar = ('/mail/static/src/img/email_icon.png');
             } else if (this.author_id && this.template != 'mail.compose_message') {
-                this.avatar = mail.ChatterUtils.get_image(this.session, 'mail.message', 'image_small', this.id);
+                this.avatar = mail.ChatterUtils.get_image(this.session, 'res.partner', 'image_small', this.author_id[0]);
             } else {
                 this.avatar = mail.ChatterUtils.get_image(this.session, 'res.users', 'image_small', this.session.uid);
             }