diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index e2ced82..e117e1e 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -792,6 +792,7 @@
 	sb->s_op = &nilfs_sops;
 	sb->s_export_op = &nilfs_export_ops;
 	sb->s_root = NULL;
+	sb->s_time_gran = 1;
 
 	if (!nilfs_loaded(nilfs)) {
 		err = load_nilfs(nilfs, sbi);