diff --git a/libavformat/rtsp.c b/libavformat/rtsp.c
index 9d5c163721..7d4c6bf783 100644
--- a/libavformat/rtsp.c
+++ b/libavformat/rtsp.c
@@ -817,7 +817,6 @@ static void rtsp_send_cmd(AVFormatContext *s,
         *content_ptr = content;
 }
 
-/* useful for modules: set RTSP callback function */
 
 void rtsp_set_callback(FFRTSPCallback *rtsp_cb)
 {
diff --git a/libavformat/rtsp.h b/libavformat/rtsp.h
index 57bb1006b9..6bdd9a11ab 100644
--- a/libavformat/rtsp.h
+++ b/libavformat/rtsp.h
@@ -76,6 +76,7 @@ typedef int FFRTSPCallback(enum RTSPCallbackAction action,
                            char *buf, int buf_size,
                            void *arg);
 
+/* useful for modules: set RTSP callback function */
 void rtsp_set_callback(FFRTSPCallback *rtsp_cb);
 
 int rtsp_init(void);