diff --git a/libavformat/isom.c b/libavformat/isom.c
index cd0b0b7cbd5dd17857bc75a09c0b9d3cb7c02c82..f669e0e9239b673c0e347d62a5a632b7f8170a63 100644
--- a/libavformat/isom.c
+++ b/libavformat/isom.c
@@ -62,6 +62,7 @@ const AVCodecTag ff_mp4_obj_type[] = {
     { AV_CODEC_ID_VP9         , 0xC0 }, /* nonstandard, update when there is a standard value */
     { AV_CODEC_ID_FLAC        , 0xC1 }, /* nonstandard, update when there is a standard value */
     { AV_CODEC_ID_TSCC2       , 0xD0 }, /* nonstandard, camtasia uses it */
+    { AV_CODEC_ID_EVRC        , 0xD1 }, /* nonstandard, pvAuthor uses it */
     { AV_CODEC_ID_VORBIS      , 0xDD }, /* nonstandard, gpac uses it */
     { AV_CODEC_ID_DVD_SUBTITLE, 0xE0 }, /* nonstandard, see unsupported-embedded-subs-2.mp4 */
     { AV_CODEC_ID_QCELP       , 0xE1 },