diff --git a/libavformat/riff.c b/libavformat/riff.c
index bda5d89bfdb3e98421c57a9f87d054f62a664324..3749640de9b6968dbe55bdccdfc23b3e0c956e85 100644
--- a/libavformat/riff.c
+++ b/libavformat/riff.c
@@ -368,6 +368,7 @@ const AVCodecTag ff_codec_wav_tags[] = {
     { AV_CODEC_ID_GSM_MS,          0x0031 },
     { AV_CODEC_ID_GSM_MS,          0x0032 },
     { AV_CODEC_ID_AMR_NB,          0x0038 },  /* rogue format number */
+    { AV_CODEC_ID_G723_1,          0x0042 },
     { AV_CODEC_ID_ADPCM_G726,      0x0045 },
     { AV_CODEC_ID_MP2,             0x0050 },
     { AV_CODEC_ID_MP3,             0x0055 },