diff --git a/libavformat/mov.c b/libavformat/mov.c
index 5e2d0fc68423f03812718c3f0167e3027cb8c6f2..bd75291a80555f1b577f6046c357f9e1bf49e3f6 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -1500,7 +1500,7 @@ static int mov_read_cmov(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
     atom.offset = 0;
     atom.size = moov_len;
 #ifdef DEBUG
-    { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
+//    { int fd = open("/tmp/uncompheader.mov", O_WRONLY | O_CREAT); write(fd, moov_data, moov_len); close(fd); }
 #endif
     ret = mov_read_default(c, &ctx, atom);
     av_free(moov_data);