diff --git a/metadata/service/slave/cluster.yml b/metadata/service/slave/cluster.yml
index 8a85ecb..81ac81e 100644
--- a/metadata/service/slave/cluster.yml
+++ b/metadata/service/slave/cluster.yml
@@ -13,6 +13,7 @@
       bind:
         address: ${_param:galera_server_bind_address}
         port: ${_param:galera_server_bind_port}
+      maintenance_password: ${_param:galera_server_maintenance_password}
       admin:
         user: ${_param:galera_server_admin_user}
         password: ${_param:galera_server_admin_password}