diff --git a/manage/sort.js b/manage/sort.js
index 2e151888..7d6d6ff7 100644
--- a/manage/sort.js
+++ b/manage/sort.js
@@ -2,7 +2,7 @@
 /* global messageBox */
 'use strict';
 
-var sorter = (() => {
+const sorter = (() => {
 
   const sorterType = {
     alpha: (a, b) => (a < b ? -1 : a === b ? 0 : 1),