diff --git a/templates/partials/header.html b/templates/partials/header.html
index 5699c17..b0d4dc5 100644
--- a/templates/partials/header.html
+++ b/templates/partials/header.html
@@ -148,7 +148,7 @@
         {# If JavaScript is disabled, hide the button. #}
         <noscript><link rel="stylesheet" href="{{ get_url(path='no_js.css') | safe }}"/></noscript>
         <script type="text/javascript" src="{{ get_url(path='js/initializeTheme.min.js') | safe }}"></script>
-        <script defer src="{{ get_url(path='js/themeSwitcher.min.js', trailing_slash=false) | safe }}"/></script>
+        <script defer src="{{ get_url(path='js/themeSwitcher.min.js', trailing_slash=false) | safe }}"></script>
     {%- endif -%}
 
     {%- if config.extra.analytics.service -%}