diff --git a/aleksis/apps/chronos/templates/chronos/substitution.html b/aleksis/apps/chronos/templates/chronos/substitution.html
index ea91da3df7dd4843480a05fa152c17c128dd218f..a19edf87ddd10dcd90afb8a828154e8e3a388d47 100644
--- a/aleksis/apps/chronos/templates/chronos/substitution.html
+++ b/aleksis/apps/chronos/templates/chronos/substitution.html
@@ -1,6 +1,10 @@
 {% extends 'core/base.html' %}
 
-{% load i18n %}
+{% load i18n static %}
+
+{% block extra_head %}
+  <link rel="stylesheet" href="{% static 'css/chronos/timetable.css' %}">
+{% endblock %}
 
 {% block content %}
   <script type="text/javascript">