diff --git a/addons/mail/static/src/js/models/threads/thread.js b/addons/mail/static/src/js/models/threads/thread.js
index ff98906aed7..16635cfaf4f 100644
--- a/addons/mail/static/src/js/models/threads/thread.js
+++ b/addons/mail/static/src/js/models/threads/thread.js
@@ -345,9 +345,7 @@ var Thread = AbstractThread.extend(ServicesMixin, {
         body = this._generateEmojis(body);
         var messageData = {
             partner_ids: data.partner_ids,
-            channel_ids: _.map(data.channel_ids, function (channelID) {
-               return [4, channelID, false];
-            }),
+            channel_ids: data.channel_ids,
             body: body,
             attachment_ids: data.attachment_ids,
             canned_response_ids: data.canned_response_ids,