diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 7510cb3..ee5a3fc 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -2652,6 +2652,7 @@
 		goto bad_thin_open;
 
 	ti->num_flush_requests = 1;
+	ti->flush_supported = true;
 
 	/* In case the pool supports discards, pass them on. */
 	if (tc->pool->pf.discard_enabled) {