diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index b6cf9dd262..7b69bc3abf 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -1699,7 +1699,6 @@ static const AVCodecTag additional_audio_tags[] = {
 };
 
 static const AVCodecTag additional_video_tags[] = {
-    { AV_CODEC_ID_PRORES,    0xFFFFFFFF },
     { AV_CODEC_ID_RV10,      0xFFFFFFFF },
     { AV_CODEC_ID_RV20,      0xFFFFFFFF },
     { AV_CODEC_ID_RV30,      0xFFFFFFFF },