diff --git a/homeassistant/components/camera/zoneminder.py b/homeassistant/components/camera/zoneminder.py
index 62d895d3922..5410833761b 100644
--- a/homeassistant/components/camera/zoneminder.py
+++ b/homeassistant/components/camera/zoneminder.py
@@ -107,7 +107,7 @@ class ZoneMinderCamera(MjpegCamera):
                             self._monitor_id)
             return
 
-        if status_response['success'] is False:
+        if not status_response.get("success", False):
             _LOGGER.warning("Alarm status API call failed for monitor %i",
                             self._monitor_id)
             return