diff --git a/libavformat/rtsp.c b/libavformat/rtsp.c
index b0c61ee00a..db78735c7a 100644
--- a/libavformat/rtsp.c
+++ b/libavformat/rtsp.c
@@ -2071,6 +2071,7 @@ static int udp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
                 if (fdsnum != 2) {
                     av_log(s, AV_LOG_ERROR,
                            "Number of fds %d not supported\n", fdsnum);
+                    av_freep(&fds);
                     return AVERROR_INVALIDDATA;
                 }
                 for (fdsidx = 0; fdsidx < fdsnum; fdsidx++) {