diff --git a/divent/templates/subscribe.html.j2 b/divent/templates/subscribe.html.j2
index 09064b6..6b6da34 100644
--- a/divent/templates/subscribe.html.j2
+++ b/divent/templates/subscribe.html.j2
@@ -44,7 +44,7 @@
         <div>
             <h3>{{ _("Use the direct link:") }}</h3>
             {# djlint:off #}
-            <input type="text" readonly class="black_input" value="webcal://{{ request.host }}/{{ entity_id }}.ics"/>
+            <input type="text" readonly class="black_input" value="{{ request.scheme }}://{{ request.host }}/{{ entity_id }}.ics"/>
             {# djlint:on #}
         </div>
     </div>