diff --git a/modules/monitoring/library/Monitoring/Object/Service.php b/modules/monitoring/library/Monitoring/Object/Service.php
index 4195b0ff4..7c22ae57d 100644
--- a/modules/monitoring/library/Monitoring/Object/Service.php
+++ b/modules/monitoring/library/Monitoring/Object/Service.php
@@ -137,6 +137,7 @@ class Service extends MonitoredObject
             'service_handled',
             'service_in_downtime',
             'service_is_flapping',
+            'service_is_reachable',
             'service_last_check',
             'service_last_notification',
             'service_last_state_change',