diff --git a/libavformat/oggparseopus.c b/libavformat/oggparseopus.c
index f45ad84874..cd34cf23ba 100644
--- a/libavformat/oggparseopus.c
+++ b/libavformat/oggparseopus.c
@@ -62,6 +62,7 @@ static int opus_header(AVFormatContext *avf, int idx)
         /*gain                = AV_RL16(packet + 16);*/
         /*channel_map         = AV_RL8 (packet + 18);*/
 
+        av_freep(&st->codecpar->extradata);
         if (ff_alloc_extradata(st->codecpar, os->psize))
             return AVERROR(ENOMEM);