diff --git a/custom_components/hilo/sensor.py b/custom_components/hilo/sensor.py
index feea7d94..337c47cb 100644
--- a/custom_components/hilo/sensor.py
+++ b/custom_components/hilo/sensor.py
@@ -456,7 +456,7 @@ async def _async_update(self):
         for notification in await self._hilo._api.get_event_notifications(
             self._hilo.devices.location_id
         ):
-            if not notification.get("viewed"):
+            if notification.get("viewed"):
                 continue
             self._notifications.append(
                 {