diff --git a/include/linux/nilfs2_fs.h b/include/linux/nilfs2_fs.h
index 79fec6af3f9f805800d7bfdce69bc15301215dc2..ce520402e840e7b46760b9655133da1cbc4f0700 100644
--- a/include/linux/nilfs2_fs.h
+++ b/include/linux/nilfs2_fs.h
@@ -424,15 +424,6 @@ struct nilfs_dat_entry {
 	__le64 de_rsv;
 };
 
-/**
- * struct nilfs_dat_group_desc - block group descriptor
- * @dg_nfrees: number of free virtual block numbers in block group
- */
-struct nilfs_dat_group_desc {
-	__le32 dg_nfrees;
-};
-
-
 /**
  * struct nilfs_snapshot_list - snapshot list
  * @ssl_next: next checkpoint number on snapshot list