diff --git a/libavformat/rtsp.h b/libavformat/rtsp.h
index 60d8c30f87..4ad49ff716 100644
--- a/libavformat/rtsp.h
+++ b/libavformat/rtsp.h
@@ -158,6 +158,8 @@ enum RTSPServerType {
 
 /**
  * Private data for the RTSP demuxer.
+ *
+ * @todo Use ByteIOContext instead of URLContext
  */
 typedef struct RTSPState {
     URLContext *rtsp_hd; /* RTSP TCP connexion handle */