diff --git a/fs/nilfs2/btnode.h b/fs/nilfs2/btnode.h
index 2cc1b80..4e8aaa1 100644
--- a/fs/nilfs2/btnode.h
+++ b/fs/nilfs2/btnode.h
@@ -43,7 +43,7 @@
 struct buffer_head *nilfs_btnode_create_block(struct address_space *btnc,
 					      __u64 blocknr);
 int nilfs_btnode_submit_block(struct address_space *, __u64, sector_t, int,
-			      struct buffer_head **, sector_t *);
+			      int, struct buffer_head **, sector_t *);
 void nilfs_btnode_delete(struct buffer_head *);
 int nilfs_btnode_prepare_change_key(struct address_space *,
 				    struct nilfs_btnode_chkey_ctxt *);