1 files changed, 2 insertions, 1 deletions

diff --git a/apps/codecs/libm4a/demux.c b/apps/codecs/libm4a/demux.c
index 61ff16c0d9..00fd3132aa 100644
--- a/apps/codecs/libm4a/demux.c
+++ b/apps/codecs/libm4a/demux.c
@@ -66,7 +66,8 @@ static void read_chunk_ftyp(qtmovie_t *qtmovie, size_t chunk_len)
         (type != MAKEFOURCC('M','4','B',' ')) &&
         (type != MAKEFOURCC('m','p','4','2')) &&
         (type != MAKEFOURCC('3','g','p','6')) &&
-        (type != MAKEFOURCC('q','t',' ',' ')))
+        (type != MAKEFOURCC('q','t',' ',' ')) &&
+        (type != MAKEFOURCC('i','s','o','m')))
     {
         DEBUGF("not M4A file\n");
         return;