diff --git a/src/moin/themes/focus/static/js/main.js b/src/moin/themes/focus/static/js/main.js
index d13291de5..9041289dc 100644
--- a/src/moin/themes/focus/static/js/main.js
+++ b/src/moin/themes/focus/static/js/main.js
@@ -1,4 +1,5 @@
 window.onload = function () {
+    "use strict";
     const headers = []
     const h1 = document.querySelectorAll("#moin-content-data h1")
     const h2 = document.querySelectorAll("#moin-content-data h2")
diff --git a/src/moin/themes/focus/templates/layout.html b/src/moin/themes/focus/templates/layout.html
index 879951b3c..c86d435af 100644
--- a/src/moin/themes/focus/templates/layout.html
+++ b/src/moin/themes/focus/templates/layout.html
@@ -13,7 +13,6 @@
 {% set credits = snippets.credits() %}
 
 {% block layout %}
-    <script src="/_themes/focus/js/main.js"></script>
     <div id="moin-main-wrapper">
         {{ before_header }}
         <header id="moin-header" lang="{{ theme_supp.user_lang }}" dir="{{ theme_supp.user_dir }}">
@@ -183,3 +182,8 @@
 
     </div>
 {% endblock %}
+
+{% block body_scripts %}
+    {{ super() }}
+    <script src="/_themes/focus/js/main.js"></script>
+{% endblock %}