diff --git a/kfet/static/kfet/js/kfet_open.js b/kfet/static/kfet/js/kfet_open.js
index b6886c7b..08a030a5 100644
--- a/kfet/static/kfet/js/kfet_open.js
+++ b/kfet/static/kfet/js/kfet_open.js
@@ -98,7 +98,6 @@ function kfet_open(init_date, init_status, init_force_close, force_close_url, fo
         }
     }
     // SYNCHRONIZATION
-    websocket_msg_default = {'last_op': 0}
 
     var websocket_protocol = window.location.protocol == 'https:' ? 'wss' : 'ws';
     var location_host = window.location.host;
@@ -106,7 +105,7 @@ function kfet_open(init_date, init_status, init_force_close, force_close_url, fo
     var socket = new ReconnectingWebSocket(websocket_protocol+"://" + location_url + "/ws/k-fet/is_open/");
 
     socket.onmessage = function(e) {
-        var data = $.extend({}, websocket_msg_default, JSON.parse(e.data));
+        var data = JSON.parse(e.data);
 
         if (data['door_action']) {
             console.log("* Message reçu de la part de la porte.");