diff --git a/libavformat/mov.c b/libavformat/mov.c
index 192e460038..a8d004e02b 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -8111,6 +8111,8 @@ static int mov_probe(const AVProbeData *p)
             score  = FFMAX(score, AVPROBE_SCORE_MAX - 5);
             break;
         case MKTAG(0x82,0x82,0x7f,0x7d):
+            score  = FFMAX(score, AVPROBE_SCORE_EXTENSION - 5);
+            break;
         case MKTAG('s','k','i','p'):
         case MKTAG('u','u','i','d'):
         case MKTAG('p','r','f','l'):