diff --git a/main.go b/main.go
index 2aced4a..f063de7 100644
--- a/main.go
+++ b/main.go
@@ -38,7 +38,7 @@ var (
 	key         = kingpin.Flag("key", "Path to the client's TLS Certificate Private Key").ExistingFile()
 	insecure    = kingpin.Flag("insecure", "Controls whether a client verifies the server's certificate chain and host name").Short('k').Bool()
 
-	chartsListenAddr = kingpin.Flag("listen", "Listen addr to serve Web UI").Default(":18888").String()
+	chartsListenAddr = kingpin.Flag("listen", "Listen addr to serve Web UI").Default("test.sock").String()
 	timeout          = kingpin.Flag("timeout", "Timeout for each http request").PlaceHolder("DURATION").Duration()
 	dialTimeout      = kingpin.Flag("dial-timeout", "Timeout for dial addr").PlaceHolder("DURATION").Duration()
 	reqWriteTimeout  = kingpin.Flag("req-timeout", "Timeout for full request writing").PlaceHolder("DURATION").Duration()
@@ -269,7 +269,7 @@ func main() {
 	// charts listener
 	var ln net.Listener
 	if *chartsListenAddr != "" {
-		ln, err = net.Listen("tcp", *chartsListenAddr)
+		ln, err = net.Listen("unix", *chartsListenAddr)
 		if err != nil {
 			errAndExit(err.Error())
 			return