diff --git a/drivers/md/dm-user.c b/drivers/md/dm-user.c
index 3d382aa..a1d0f1a 100644
--- a/drivers/md/dm-user.c
+++ b/drivers/md/dm-user.c
@@ -219,8 +219,9 @@
 	 * Terminate the IO with an error
 	 */
 	list_del(&msg->to_user);
-	pr_err("IO error: sector %d: no user-space daemon for %s target\n",
-	       msg->bio->bi_iter.bi_sector, t->miscdev.name);
+	pr_err("I/O error: sector %llu: no user-space daemon for %s target\n",
+	       msg->bio->bi_iter.bi_sector,
+	       t->miscdev.name);
 	message_kill(msg, &t->message_pool);
 	mutex_unlock(&t->lock);
 }