diff --git a/addons/mail/static/src/js/chat_manager.js b/addons/mail/static/src/js/chat_manager.js
index 3883cc512a4..54eaf637ff8 100644
--- a/addons/mail/static/src/js/chat_manager.js
+++ b/addons/mail/static/src/js/chat_manager.js
@@ -12,7 +12,7 @@ var web_client = require('web.web_client');
 
 var _t = core._t;
 var _lt = core._lt;
-var LIMIT = 100;
+var LIMIT = 25;
 var preview_msg_max_size = 350;  // optimal for native english speakers
 
 var MessageModel = new Model('mail.message', session.context);