diff --git a/src/lxc/start.c b/src/lxc/start.c
index 61d268ad0..db2a56e71 100644
--- a/src/lxc/start.c
+++ b/src/lxc/start.c
@@ -1289,9 +1289,6 @@ static int lxc_spawn(struct lxc_handler *handler)
 	if (lxc_sync_barrier_child(handler, LXC_SYNC_POST_CGROUP))
 		return -1;
 
-	if (detect_shared_rootfs())
-		umount2(handler->conf->rootfs.mount, MNT_DETACH);
-
 	if (handler->ops->post_start(handler, handler->data))
 		goto out_abort;