diff --git a/metadata/service/master/single.yml b/metadata/service/master/single.yml
index 3ceebf6..beb7bd2 100644
--- a/metadata/service/master/single.yml
+++ b/metadata/service/master/single.yml
@@ -18,6 +18,7 @@
       apiserver:
         address: ${_param:single_address}
         insecure_address: 127.0.0.1
+        insecure_port: 8080
       etcd:
         members:
           - host: ${_param:single_address}