diff --git a/libavformat/mov.c b/libavformat/mov.c
index 7a09017020..f0e98f38b5 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -9443,7 +9443,8 @@ static int mov_parse_tiles(AVFormatContext *s)
                 if (err < 0 && err != AVERROR(EEXIST))
                     return err;
 
-                st->disposition |= AV_DISPOSITION_DEPENDENT;
+                if (item->item_id != mov->primary_item_id)
+                    st->disposition |= AV_DISPOSITION_DEPENDENT;
                 break;
             }