diff --git a/libavcodec/imc.c b/libavcodec/imc.c
index d0a0d9da022636349219ea932e57cdaaebae7def..b1fcf129485e4e493ba651011f2c1b0019c0774d 100644
--- a/libavcodec/imc.c
+++ b/libavcodec/imc.c
@@ -167,7 +167,7 @@ static av_cold int imc_decode_init(AVCodecContext * avctx)
     }
     dsputil_init(&q->dsp, avctx);
     avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
-    avctx->channel_layout = (avctx->channels==2) ? AV_CH_LAYOUT_STEREO : AV_CH_LAYOUT_MONO;
+    avctx->channel_layout = AV_CH_LAYOUT_MONO;
     return 0;
 }