diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c
index c387fb589c57..522bd45005ac 100644
--- a/drivers/block/ublk_drv.c
+++ b/drivers/block/ublk_drv.c
@@ -4388,6 +4388,7 @@ static int ublk_add_tag_set(struct ublk_device *ub)
 	ub->tag_set.nr_hw_queues = ub->dev_info.nr_hw_queues;
 	ub->tag_set.queue_depth = ub->dev_info.queue_depth;
 	ub->tag_set.numa_node = NUMA_NO_NODE;
+	ub->tag_set.flags = BLK_MQ_F_NO_SCHED_BY_DEFAULT;
 	ub->tag_set.driver_data = ub;
 	return blk_mq_alloc_tag_set(&ub->tag_set);
 }