diff --git a/packages/strapi-helper-plugin/lib/src/components/LeftMenuList/index.js b/packages/strapi-helper-plugin/lib/src/components/LeftMenuList/index.js
index 8e6f51944f..ff5825c90c 100644
--- a/packages/strapi-helper-plugin/lib/src/components/LeftMenuList/index.js
+++ b/packages/strapi-helper-plugin/lib/src/components/LeftMenuList/index.js
@@ -1,6 +1,6 @@
 import React, { isValidElement, useState } from 'react';
 import PropTypes from 'prop-types';
-import { get, isEmpty, isObject } from 'lodash';
+import { get, isEmpty, isObject, toLower } from 'lodash';
 import { useGlobalContext } from '../../contexts/GlobalContext';
 import matchSorter from 'match-sorter';
 import LeftMenuLink from '../LeftMenuLink';
@@ -54,12 +54,13 @@ function LeftMenuList({ customLink, links, title, searchable }) {
       return links.map(link => {
         return {
           ...link,
-          links: matchSorter(link.links, search, { keys: ['title'] }),
+          links: matchSorter(link.links, toLower(search), {
+            keys: [item => toLower(item.title)],
+          }),
         };
       });
     }
-
-    return matchSorter(links, search, { keys: ['title'] });
+    return matchSorter(links, toLower(search), { keys: [item => toLower(item.title)] });
   };
 
   const renderCompo = (link, i) => {