diff --git a/modules/monitoring/library/Monitoring/Object/Service.php b/modules/monitoring/library/Monitoring/Object/Service.php
index 7e792c3c1..242870231 100644
--- a/modules/monitoring/library/Monitoring/Object/Service.php
+++ b/modules/monitoring/library/Monitoring/Object/Service.php
@@ -146,8 +146,6 @@ class Service extends MonitoredObject
             'service_active_checks_enabled_changed',
             'service_passive_checks_enabled',
             'service_passive_checks_enabled_changed',
-            'service_last_hard_state',
-            'service_last_hard_state_change',
             'service_last_time_ok',
             'service_last_time_warning',
             'service_last_time_critical',