diff --git a/gns3server/handlers/api/controller/notification_handler.py b/gns3server/handlers/api/controller/notification_handler.py
index 2fea4efd..be64a9f3 100644
--- a/gns3server/handlers/api/controller/notification_handler.py
+++ b/gns3server/handlers/api/controller/notification_handler.py
@@ -72,7 +72,7 @@ class NotificationHandler:
         yield from ws.prepare(request)
 
         asyncio_ensure_future(process_websocket(ws))
-        with controller.notification.controler_queue() as queue:
+        with controller.notification.controller_queue() as queue:
             while True:
                 try:
                     notification = yield from queue.get_json(5)