diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h
index 1801539..21eec86 100644
--- a/fs/xfs/xfs_btree.h
+++ b/fs/xfs/xfs_btree.h
@@ -548,6 +548,7 @@
 int xfs_btree_split(struct xfs_btree_cur *, int, union xfs_btree_ptr *,
 		union xfs_btree_key *, struct xfs_btree_cur **, int *);
 int xfs_btree_new_root(struct xfs_btree_cur *, int *);
+int xfs_btree_new_iroot(struct xfs_btree_cur *, int *, int *);
 
 /*
  * Helpers.