diff --git a/libavcodec/vmdaudio.c b/libavcodec/vmdaudio.c
index 045a2da..8759300 100644
--- a/libavcodec/vmdaudio.c
+++ b/libavcodec/vmdaudio.c
@@ -85,7 +85,7 @@
     }
 
     av_channel_layout_uninit(&avctx->ch_layout);
-    av_channel_layout_default(&avctx->ch_layout, channels == 1);
+    av_channel_layout_default(&avctx->ch_layout, channels);
 
     if (avctx->bits_per_coded_sample == 16)
         avctx->sample_fmt = AV_SAMPLE_FMT_S16;