diff --git a/src/mon/PGMonitor.cc b/src/mon/PGMonitor.cc
index 3568d578c3f8d..4ae4a038f1b09 100644
--- a/src/mon/PGMonitor.cc
+++ b/src/mon/PGMonitor.cc
@@ -1023,8 +1023,8 @@ bool PGMonitor::register_new_pgs()
        ++p) {
     int64_t poolid = p->first;
     pg_pool_t &pool = p->second;
-    int ruleno = pool.get_crush_ruleset();
-    if (!osdmap->crush->rule_exists(ruleno)) 
+    int ruleno = osdmap->crush->find_rule(pool.get_crush_ruleset(), pool.get_type(), pool.get_size());
+    if (ruleno < 0 || !osdmap->crush->rule_exists(ruleno))
       continue;
 
     if (pool.get_last_change() <= pg_map.last_pg_scan ||