diff --git a/assets/js/app.js b/assets/js/app.js
index 280b896..ddfb05d 100644
--- a/assets/js/app.js
+++ b/assets/js/app.js
@@ -1,14 +1,14 @@
 /*jslint es5: true, indent: 2, browser: true*/
-/*global jQuery: true*/
 
-(function ($) {
+(function () {
   'use strict';
-
-  $(document).ready(function () {
-   $('#select-command').on('change', function () {
-    $('.command').text($(this).val());
-   });
-  });
-
-})(jQuery);
-
+  var onLoad = function (event) {
+    var select = document.querySelector('#select-command');
+    select.addEventListener('change', function () {
+      [].forEach.call(document.querySelectorAll('.command'), function (el) {
+        el.innerHTML = this.value;
+      }, this);
+    });
+  }
+  document.addEventListener('DOMContentLoaded', onLoad);
+})();
diff --git a/assets/js/app.min.js b/assets/js/app.min.js
deleted file mode 100644
index c5a8c20..0000000
--- a/assets/js/app.min.js
+++ /dev/null
@@ -1 +0,0 @@
-!function($){"use strict";$(document).ready(function(){$("#select-command").on("change",function(){$(".command").text($(this).val())})})}(jQuery);
\ No newline at end of file
diff --git a/index.html b/index.html
index 5ba8a75..f40db26 100644
--- a/index.html
+++ b/index.html
@@ -65,7 +65,6 @@
       </div>
     </div>
     <a href="https://github.com/martinp/ifconfig"><img style="position: absolute; top: 0; right: 0; border: 0;" src="https://s3.amazonaws.com/github/ribbons/forkme_right_red_aa0000.png" alt="Fork me on GitHub"></a>
-    <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
-    <script src="/assets/js/app.min.js"></script>
+    <script src="/assets/js/app.js"></script>
   </body>
 </html>