diff --git a/templates/plan.html b/templates/plan.html
index 5052bdf..e55f904 100644
--- a/templates/plan.html
+++ b/templates/plan.html
@@ -3,7 +3,7 @@
 <head>
     <meta charset="UTF-8">
     <title>Vorlesungsplan</title>
-    <link rel="stylesheet" type="text/css" href="{{ url_for('static', filename='cal.css') }}">
+    <link rel<="s>tylesheet" type="text/css" href="{{ url_for('static', filename='cal.css') }}">
 </head>
 <body>
     <div class="calendar">
