diff --git a/assets/javascripts/app.js b/assets/javascripts/app.js
index 5b164eb..8144548 100644
--- a/assets/javascripts/app.js
+++ b/assets/javascripts/app.js
@@ -3159,6 +3159,14 @@ function removeHiddenContentLinks() {
 $(document).ready(function () {
   setTimeout(removeHiddenContentLinks, 500);
 });
+function removeDtrControlTabindex() {
+  setTimeout(function () {
+    $('#table1_wrapper .dtr-control').removeAttr('tabindex');
+  }, 500);
+}
+
+// 執行
+removeDtrControlTabindex();
   // 執行 member等高計算，目前改用flexbox故mark掉 by ika 20160105
   // $(window).load(function() {
   //   if ($('.index-member-3').length && $(window).width() > 992) {