diff --git a/libavformat/flvenc.c b/libavformat/flvenc.c
index df429836df..f026f0e53b 100644
--- a/libavformat/flvenc.c
+++ b/libavformat/flvenc.c
@@ -807,6 +807,7 @@ static void flv_write_codec_header(AVFormatContext* s, AVCodecParameters* par, i
     if (par->codec_id == AV_CODEC_ID_AAC || par->codec_id == AV_CODEC_ID_H264
             || par->codec_id == AV_CODEC_ID_MPEG4 || par->codec_id == AV_CODEC_ID_HEVC
             || par->codec_id == AV_CODEC_ID_AV1 || par->codec_id == AV_CODEC_ID_VP9
+            || (par->codec_id == AV_CODEC_ID_MP3 && track_idx)
             || par->codec_id == AV_CODEC_ID_OPUS || par->codec_id == AV_CODEC_ID_FLAC
             || par->codec_id == AV_CODEC_ID_AC3 || par->codec_id == AV_CODEC_ID_EAC3) {
         int64_t pos;