diff --git a/src/options.html b/src/options.html
index 3df88c5..021db05 100644
--- a/src/options.html
+++ b/src/options.html
@@ -7,6 +7,7 @@
   </head>
   <body>
     <p>
+      <input type="checkbox" id="list"> <label for="list" data-i18n="list"></label><br>
       <input type="checkbox" id="thread"> <label for="thread" data-i18n="thread"></label><br>
       <input type="checkbox" id="threadall"> <label for="threadall" data-i18n="threadall"></label>
     </p>