diff --git a/libavcodec/wmaenc.c b/libavcodec/wmaenc.c
index b31137a2d9..18dd283d37 100644
--- a/libavcodec/wmaenc.c
+++ b/libavcodec/wmaenc.c
@@ -82,8 +82,6 @@ static int encode_init(AVCodecContext * avctx){
                          (avctx->sample_rate * 8);
     s->block_align     = FFMIN(s->block_align, MAX_CODED_SUPERFRAME_SIZE);
     avctx->block_align = s->block_align;
-    avctx->bit_rate    = avctx->block_align * 8LL * avctx->sample_rate /
-                         s->frame_len;
 //av_log(NULL, AV_LOG_ERROR, "%d %d %d %d\n", s->block_align, avctx->bit_rate, s->frame_len, avctx->sample_rate);
     avctx->frame_size = avctx->delay = s->frame_len;