diff --git a/fs/ceph/rados.h b/fs/ceph/rados.h
index 85bdef7..fb23ff9 100644
--- a/fs/ceph/rados.h
+++ b/fs/ceph/rados.h
@@ -84,6 +84,7 @@
 	__u8 type;                /* CEPH_PG_TYPE_* */
 	__u8 size;                /* number of osds in each pg */
 	__u8 crush_ruleset;       /* crush placement rule */
+	__u8 object_hash;         /* hash mapping object name to ps */
 	__le32 pg_num, pgp_num;   /* number of pg's */
 	__le32 lpg_num, lpgp_num; /* number of localized pg's */
 	__le32 last_change;       /* most recent epoch changed */