diff --git a/addons/mail/static/src/js/followers.js b/addons/mail/static/src/js/followers.js
index 9fe3d9f00bc..95dc9038417 100644
--- a/addons/mail/static/src/js/followers.js
+++ b/addons/mail/static/src/js/followers.js
@@ -255,7 +255,6 @@ var Followers = AbstractField.extend({
                         [self.res_id],
                         ids.partner_ids,
                         ids.channel_ids,
-                        {}, // FIXME
                     ];
                     self._rpc({
                         model: self.model,