diff --git a/lib/fs/builtin/posix/open_fs.c b/lib/fs/builtin/posix/open_fs.c
index e8b0877..0d5694e 100644
--- a/lib/fs/builtin/posix/open_fs.c
+++ b/lib/fs/builtin/posix/open_fs.c
@@ -23,7 +23,7 @@
 
 CASIO_LOCAL casio_fsfuncs_t posix_fs_funcs = {
 	NULL, &casio_make_posix_path, &casio_free_posix_path,
-	&casio_posix_stat, NULL, NULL, NULL,
+	&casio_posix_stat, NULL, NULL, NULL, NULL,
 	NULL, NULL, NULL
 };
 
diff --git a/lib/link/seven_fs/open.c b/lib/link/seven_fs/open.c
index 787be56..6f04c0a 100644
--- a/lib/link/seven_fs/open.c
+++ b/lib/link/seven_fs/open.c
@@ -26,6 +26,7 @@ CASIO_LOCAL casio_fsfuncs_t sevenfs_callbacks = {
 	(casio_fs_freepath_t*)&casio_free_sevenfs_path,
 	NULL,
 	NULL,
+	NULL,
 	(casio_fs_del_t*)&casio_sevenfs_delete,
 	NULL,
 	(casio_fs_list_t*)&casio_sevenfs_list,