diff --git a/app/assets/javascripts/admin/commons/batch_selectable.js b/app/assets/javascripts/admin/commons/batch_selectable.js
index ea111a3c0cb4d1f905dfe176d72b320e005d8b42..24d954826cc31c9de41dc7a56129be4a6aa656b9 100644
--- a/app/assets/javascripts/admin/commons/batch_selectable.js
+++ b/app/assets/javascripts/admin/commons/batch_selectable.js
@@ -11,15 +11,13 @@ window.osuny.BatchSelectable = function BatchSelectable (element) {
 
 window.osuny.BatchSelectable.prototype.initEvents = function () {
     'use strict';
-    var selectSingleInput,
-        i;
+    var i;
     if (this.selectAllInput !== null) {
         this.selectAllInput.addEventListener('change', this.toggleSingleInputs.bind(this));
     }
     if (this.actionsContainer !== null) {
         for (i = 0; i < this.selectSingleInputs.length; i += 1) {
-            selectSingleInput = this.selectSingleInputs[i];
-            selectSingleInput.addEventListener('change', this.toggleActionsContainer.bind(this));
+            this.selectSingleInputs[i].addEventListener('change', this.toggleActionsContainer.bind(this));
         }
     }
 };