diff --git a/libavformat/thp.c b/libavformat/thp.c
index 7103cf4f8a..fdb499bf42 100644
--- a/libavformat/thp.c
+++ b/libavformat/thp.c
@@ -142,7 +142,7 @@ static int thp_read_header(AVFormatContext *s)
             st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
             st->codecpar->codec_id = AV_CODEC_ID_ADPCM_THP;
             st->codecpar->codec_tag = 0;  /* no fourcc */
-            st->codecpar->channels    = avio_rb32(pb); /* numChannels.  */
+            st->codecpar->ch_layout.nb_channels = avio_rb32(pb);
             st->codecpar->sample_rate = avio_rb32(pb); /* Frequency.  */
             st->duration           = avio_rb32(pb);