diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index f53bb38..787022c 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -975,6 +975,7 @@
 
 	INIT_WORK(&rs->md.event_work, do_table_event);
 	ti->private = rs;
+	ti->num_flush_requests = 1;
 
 	mutex_lock(&rs->md.reconfig_mutex);
 	ret = md_run(&rs->md);