diff --git a/libavformat/wsddec.c b/libavformat/wsddec.c
index e84d093c65..9ca0576815 100644
--- a/libavformat/wsddec.c
+++ b/libavformat/wsddec.c
@@ -128,6 +128,7 @@ static int wsd_read_header(AVFormatContext *s)
     st->codecpar->sample_rate = avio_rb32(pb) / 8;
     avio_skip(pb, 4);
     st->codecpar->channels    = avio_r8(pb) & 0xF;
+    st->codecpar->bit_rate    = st->codecpar->channels * st->codecpar->sample_rate * 8LL;
     if (!st->codecpar->channels)
         return AVERROR_INVALIDDATA;