diff --git a/unifi_protect_backup/event_listener.py b/unifi_protect_backup/event_listener.py
index 66b928c..fb552d9 100644
--- a/unifi_protect_backup/event_listener.py
+++ b/unifi_protect_backup/event_listener.py
@@ -61,7 +61,7 @@ class EventListener:
             return
         if msg.new_obj.camera_id in self.ignore_cameras:
             return
-        if msg.new_obj.end is None:
+        if 'end' not in msg.changed_data:
             return
         if msg.new_obj.type not in [EventType.MOTION, EventType.SMART_DETECT, EventType.RING]:
             return