diff --git a/protocol/rtsp/rtsp_test.go b/protocol/rtsp/rtsp_test.go
index 744d67c8..8c9b5e53 100644
--- a/protocol/rtsp/rtsp_test.go
+++ b/protocol/rtsp/rtsp_test.go
@@ -206,6 +206,7 @@ func TestMethods(t *testing.T) {
 		var err error
 
 		// Keep trying to connect to server.
+		// TODO: use generalised retry utility when available.
 		for retry := 0; ; retry++ {
 			clt, err = NewClient(serverAddr)
 			if err == nil {