diff --git a/cmd/rest-server/main.go b/cmd/rest-server/main.go
index 14c36a4..38acced 100644
--- a/cmd/rest-server/main.go
+++ b/cmd/rest-server/main.go
@@ -30,7 +30,7 @@ func init() {
 	flags.StringVar(&restserver.Config.Path, "path", restserver.Config.Path, "data directory")
 	flags.BoolVar(&restserver.Config.TLS, "tls", restserver.Config.TLS, "turn on TLS support")
 	flags.BoolVar(&restserver.Config.AppendOnly, "append-only", restserver.Config.AppendOnly, "enable append only mode")
-	flags.BoolVar(&restserver.Config.Prometheus, "prometheus", restserver.Config.AppendOnly, "enable Prometheus metrics")
+	flags.BoolVar(&restserver.Config.Prometheus, "prometheus", restserver.Config.Prometheus, "enable Prometheus metrics")
 }
 
 var version = "manually"