diff --git a/yoshi-theme.el b/yoshi-theme.el
index 6f60fca..b4a6f1e 100644
--- a/yoshi-theme.el
+++ b/yoshi-theme.el
@@ -1,4 +1,4 @@
-;;; yoshi-theme.el --- Theme named after my cat
+;;; yoshi-theme.el --- Theme named after my cat  -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 2012, 2013, 2014, 2015  Tom Willemsen