diff --git a/lib/libarchive/archive_read_support_format_all.c b/lib/libarchive/archive_read_support_format_all.c
index 8f0dcfadf282..6c994391f97a 100644
--- a/lib/libarchive/archive_read_support_format_all.c
+++ b/lib/libarchive/archive_read_support_format_all.c
@@ -33,6 +33,7 @@ int
 archive_read_support_format_all(struct archive *a)
 {
 	archive_read_support_format_cpio(a);
+	archive_read_support_format_iso9660(a);
 	archive_read_support_format_tar(a);
 	return (ARCHIVE_OK);
 }