diff --git a/libavformat/riff.c b/libavformat/riff.c
index 7a97cf1ccf..6c06ad2d60 100644
--- a/libavformat/riff.c
+++ b/libavformat/riff.c
@@ -579,6 +579,7 @@ const AVCodecTag ff_codec_wav_tags[] = {
     { AV_CODEC_ID_DTS,             0x2001 },
     { AV_CODEC_ID_SONIC,           0x2048 },
     { AV_CODEC_ID_SONIC_LS,        0x2048 },
+    { AV_CODEC_ID_G729,            0x2222 },
     { AV_CODEC_ID_PCM_MULAW,       0x6c75 },
     { AV_CODEC_ID_AAC,             0x706d },
     { AV_CODEC_ID_AAC,             0x4143 },