diff --git a/data/etc/ikiwiki/plinth-blog.setup b/data/etc/ikiwiki/plinth-blog.setup
index 795c3334b..cde81794d 100644
--- a/data/etc/ikiwiki/plinth-blog.setup
+++ b/data/etc/ikiwiki/plinth-blog.setup
@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+# -*- mode: perl -*-
 # Ikiwiki setup automator for Plinth (blog version).
 
 require IkiWiki::Setup::Automator;
diff --git a/data/etc/ikiwiki/plinth-wiki.setup b/data/etc/ikiwiki/plinth-wiki.setup
index 889b6c93c..9b7b51998 100644
--- a/data/etc/ikiwiki/plinth-wiki.setup
+++ b/data/etc/ikiwiki/plinth-wiki.setup
@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+# -*- mode: perl -*-
 # Ikiwiki setup automator for Plinth.
 
 require IkiWiki::Setup::Automator;