diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index 603ddd92db19..dbd9a4792427 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -1129,7 +1129,7 @@ static int *calc_pg_raw(struct ceph_osdmap *osdmap, struct ceph_pg pgid,
 
 	/* pg_temp? */
 	pgid.seed = ceph_stable_mod(pgid.seed, pool->pg_num,
-				    pool->pgp_num_mask);
+				    pool->pg_num_mask);
 	pg = __lookup_pg_mapping(&osdmap->pg_temp, pgid);
 	if (pg) {
 		*num = pg->len;