diff --git a/plexpy/notifiers.py b/plexpy/notifiers.py
index 1a00a4f9..65b46a1a 100644
--- a/plexpy/notifiers.py
+++ b/plexpy/notifiers.py
@@ -429,7 +429,8 @@ def available_notification_agents():
                        'on_intdown': plexpy.CONFIG.OSX_NOTIFY_ON_INTDOWN,
                        'on_extup': plexpy.CONFIG.OSX_NOTIFY_ON_EXTUP,
                        'on_intup': plexpy.CONFIG.OSX_NOTIFY_ON_INTUP,
-                       'on_pmsupdate': plexpy.CONFIG.OSX_NOTIFY_ON_PMSUPDATE
+                       'on_pmsupdate': plexpy.CONFIG.OSX_NOTIFY_ON_PMSUPDATE,
+                       'on_concurrent': plexpy.CONFIG.OSX_NOTIFY_ON_CONCURRENT
                        })
 
     return agents