diff --git a/modules/monitoring/library/Monitoring/Controller.php b/modules/monitoring/library/Monitoring/Controller.php
index 787ce62ad..2566de742 100644
--- a/modules/monitoring/library/Monitoring/Controller.php
+++ b/modules/monitoring/library/Monitoring/Controller.php
@@ -71,6 +71,7 @@ class Controller extends ActionController
             'service_acknowledged',
             'service_handled',
             'service_output',
+            'service_perfdata',
             'service_attempt',
             'service_last_state_change',
             'service_icon_image',