diff --git a/test/trivial-project/trivial-project.el b/test/trivial-project/trivial-project.el
index 99b0a0a..68bf864 100644
--- a/test/trivial-project/trivial-project.el
+++ b/test/trivial-project/trivial-project.el
@@ -1,4 +1,4 @@
-;;; trivial-project.el --- Trivial test project
+;;; trivial-project.el --- Trivial test project  -*- lexical-binding: t -*-
 
 ;; Version: 1.0