diff --git a/templates/admin.html b/templates/admin.html
index 98066af..c5e4e64 100644
--- a/templates/admin.html
+++ b/templates/admin.html
@@ -356,7 +356,7 @@
         </div>
 
         {% for r in data.apps %}
-        <section class="station" data-label="[ STATION: {{ loop.index | string | zfill(2) }} ]">
+        <section class="station" data-label="[ STATION: {{ " %02d"|format(loop.index) }} ]">
             <h2>{{ r.app }}</h2>
 
             <div class="grid">