diff --git a/broadcast/index.frm.php b/broadcast/index.frm.php
index eebef00..f4daced 100644
--- a/broadcast/index.frm.php
+++ b/broadcast/index.frm.php
@@ -19,7 +19,6 @@
         <?php else: ?>
             <title>伊地知ニジカ放送局 - ニジカ返答ログ</title>
         <?php endif ?>
-        <input type="hidden" id="available" value="<?= $available ? '1' : '0' ?>" />
     </head>
 
     <body>
