diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index 85d254edd9be..ef124b71ccc8 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -741,7 +741,7 @@ static void do_reads(struct mirror_set *ms, struct bio_list *reads)
 		/*
 		 * We can only read balance if the region is in sync.
 		 */
-		if (rh_in_sync(&ms->rh, region, 0))
+		if (rh_in_sync(&ms->rh, region, 1))
 			m = choose_mirror(ms, bio->bi_sector);
 		else
 			m = ms->default_mirror;