diff --git a/web/public/index.html b/web/public/index.html
index 678d548..a28896d 100644
--- a/web/public/index.html
+++ b/web/public/index.html
@@ -30,6 +30,7 @@
 <main>
 	<h2>Select Tanabata service</h2>
 	<div class="contents-wrapper">
+		<a href="/auth" class="btn btn-primary">Authorize</a>
 		<a href="/tfm" class="btn btn-primary">TFM</a>
 	</div>
 </main>