diff --git a/metadata/service/server/proxy.yml b/metadata/service/server/proxy.yml
index 628bdc7..02e77dd 100644
--- a/metadata/service/server/proxy.yml
+++ b/metadata/service/server/proxy.yml
@@ -2,6 +2,7 @@
 - etcd
 classes:
 - service.etcd.support
+- service.etcd.linux
 parameters:
   etcd:
     server:
@@ -15,4 +16,4 @@
         - host: ${_param:cluster_node02_address}
           name: ${_param:cluster_node02_hostname}
         - host: ${_param:cluster_node03_address}
-          name: ${_param:cluster_node03_hostname}
\ No newline at end of file
+          name: ${_param:cluster_node03_hostname}