diff --git a/metadata/service/client/init.yml b/metadata/service/client/init.yml
index 2747624..87ef14f 100644
--- a/metadata/service/client/init.yml
+++ b/metadata/service/client/init.yml
@@ -1,5 +1,7 @@
 applications:
 - ntp
+classes:
+  - service.ntp.support
 parameters:
   _param:
     ntp_strata_host1: ntp.cesnet.cz
@@ -9,4 +11,4 @@
       enabled: true
       strata:
       - ${_param:ntp_strata_host1}
-      - ${_param:ntp_strata_host2}
\ No newline at end of file
+      - ${_param:ntp_strata_host2}