diff --git a/templates/base.html b/templates/base.html
index 94df674..d4ca2fd 100644
--- a/templates/base.html
+++ b/templates/base.html
@@ -5,7 +5,7 @@
     <meta http-equiv="content-type" content="text/html; charset=UTF-8">
     <meta name="description" content="the main Adrianux page">
     <link rel="canonical" href="https://adrianux.net/">
-    <link rel="stylesheet" href="css/pico.min.css" />
+    <link rel="stylesheet" href="{{ url_for('css, filename='pico.min.css') }}" />
     <title>{% block title %}{% endblock %} - Adrianux.net</title>
     {% endblock %}
 </head>