diff --git a/libavformat/mov.c b/libavformat/mov.c
index 3e83e54a77..26aeeaea0c 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -9036,7 +9036,7 @@ const AVInputFormat ff_mov_demuxer = {
     .long_name      = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
     .priv_class     = &mov_class,
     .priv_data_size = sizeof(MOVContext),
-    .extensions     = "mov,mp4,m4a,3gp,3g2,mj2,psp,m4b,ism,ismv,isma,f4v",
+    .extensions     = "mov,mp4,m4a,3gp,3g2,mj2,psp,m4b,ism,ismv,isma,f4v,avif",
     .flags_internal = FF_FMT_INIT_CLEANUP,
     .read_probe     = mov_probe,
     .read_header    = mov_read_header,