diff --git a/metadata/service/server/single.yml b/metadata/service/server/single.yml
index b4f0577..82d838a 100644
--- a/metadata/service/server/single.yml
+++ b/metadata/service/server/single.yml
@@ -2,6 +2,7 @@
 - etcd
 classes:
 - service.etcd.support
+- service.etcd.linux
 parameters:
   etcd:
     server:
@@ -12,4 +13,4 @@
       members:
         - host: ${_param:node_address}
           name: ${_param:node_hostname}
-          port: ${_param:node_port}
\ No newline at end of file
+          port: ${_param:node_port}