diff --git a/en b/en
index 7ebea22..57c03bb 100755
--- a/en
+++ b/en
@@ -1,15 +1,21 @@
-#!/bin/sh -e
+#!/bin/sh
 
-# Copyright (c) 2023-2024 Emma Tebibyte <emma@tebibyte.media>
+# Copyright (c) 2023–2024 Emma Tebibyte <emma@tebibyte.media>
 # SPDX-License-Identifier: FSFAP
 #
 # Copying and distribution of this file, with or without modification, are
 # permitted in any medium without royalty provided the copyright notice and this
 # notice are preserved.	This file is offered as-is, without any warranty.
 
+set -e
+
+if test -n "$DEBUG"; then
+	set -x
+fi
+
 if command -v highlight >/dev/null 2>&1
 then
-	HIGHLIGHT_OPTIONS='--out-format=ansi'; export HIGHLIGHT_OPTIONS
+	export HIGHLIGHT_OPTIONS='--out-format=ansi'
 else
 	alias highlight=cat
 fi