diff --git a/planetstack/openstack/backend.py b/planetstack/openstack/backend.py
index 43afba7..2f4aa71 100644
--- a/planetstack/openstack/backend.py
+++ b/planetstack/openstack/backend.py
@@ -1,6 +1,6 @@
 import threading
 from openstack.observer import OpenStackObserver
-from openstack.event_listener import EventListener
+from openstack.event_manager import EventListener
 
 class Backend:
     
@@ -11,7 +11,7 @@
         observer_thread.start()
 
         # start event listene
-        event_listener = EventListener()
-        event_listener_thread = threading.Thread(target=event_listener.run)
-        event_listener_thread.start()
+        event_manager = EventListener(wake_up=observer.wake_up)
+        event_manager_thread = threading.Thread(target=event_manager.run)
+        event_manager_thread.start()