diff --git a/metadata/service/control/single.yml b/metadata/service/control/single.yml
index a0858c3..30bfed8 100644
--- a/metadata/service/control/single.yml
+++ b/metadata/service/control/single.yml
@@ -7,6 +7,7 @@
     keystone_glance_endpoint_type: internalURL
     openstack_log_appender: false
     openstack_fluentd_handler_enabled: false
+    openstack_ossyslog_handler_enabled: false
   glance:
     server:
       enabled: true
@@ -41,6 +42,8 @@
             enabled: true
           fluentd:
             enabled: ${_param:openstack_fluentd_handler_enabled}
+          ossyslog:
+            enabled: ${_param:openstack_ossyslog_handler_enabled}
       message_queue:
         engine: rabbitmq
         host: ${_param:single_address}