diff --git a/block/blk-mq-sched.c b/block/blk-mq-sched.c
index b1f06088cee51c1a4865e942078fc7c7748bba98..56c493c6cd903ed1b8eefc609861feb04ad2d1aa 100644
--- a/block/blk-mq-sched.c
+++ b/block/blk-mq-sched.c
@@ -585,6 +585,7 @@ int blk_mq_init_sched(struct request_queue *q, struct elevator_type *e)
 
 	if (!e) {
 		q->elevator = NULL;
+		q->nr_requests = q->tag_set->queue_depth;
 		return 0;
 	}