diff --git a/static/js/check_new_messages.js b/static/js/check_new_messages.js
index 3881bb6..9673dfc 100644
--- a/static/js/check_new_messages.js
+++ b/static/js/check_new_messages.js
@@ -56,7 +56,7 @@ function check_new_messages (window,data){
     if (last_message_time === null){
     //
     } else {
-        data.push([{ 'last_message_modifiteDT':last_message_time.dataset['modifieddt'] }])
+        data.last_message_modifiteDT = last_message_time.dataset['modifieddt']
     }
 
     $.ajax({