diff --git a/elasticsearch/server/cluster.yml b/elasticsearch/server/cluster.yml
index 8f53f21..efb70f3 100644
--- a/elasticsearch/server/cluster.yml
+++ b/elasticsearch/server/cluster.yml
@@ -1,5 +1,7 @@
 classes:
 - service.elasticsearch.server.cluster
+- service.haproxy.proxy.single
+- service.keepalived.cluster.single
 - service.java.environment
 parameters:
   _param: