diff --git a/cmd/mxl-sync/main.go b/cmd/mxl-sync/main.go
index f813009..0665380 100644
--- a/cmd/mxl-sync/main.go
+++ b/cmd/mxl-sync/main.go
@@ -15,8 +15,8 @@ import (
 
 func main() {
 	domain := flag.String("d", "/dev/shm/mxl", "MXL domain")
-	videoFlow := flag.String("v", "", "Video flow UUID")
-	audioFlow := flag.String("a", "", "Audio flow UUID")
+	videoFlow := flag.String("v", "5fbec3b1-1b0f-417d-9059-8b94a47197ed", "Video flow UUID")
+	audioFlow := flag.String("a", "5fbec3b1-1b0f-417d-9059-8b94a47197ec", "Audio flow UUID")
 	flag.Parse()
 	if *videoFlow == "" || *audioFlow == "" {
 		log.Fatal("need both -v <video-flow> and -a <audio-flow>")