diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c
index 3cf4a7fe18..f16b831ccd 100644
--- a/libavcodec/aacdec.c
+++ b/libavcodec/aacdec.c
@@ -368,7 +368,7 @@ static void pop_output_configuration(AACContext *ac) {
     if (ac->oc[1].status != OC_LOCKED) {
         ac->oc[1] = ac->oc[0];
         ac->avctx->channels = ac->oc[1].channels;
-        ac->avctx->channel_layout = ac->oc[1].channels;
+        ac->avctx->channel_layout = ac->oc[1].channel_layout;
     }
 }