diff --git a/app/assets/javascripts/exercises.js.erb b/app/assets/javascripts/exercises.js.erb
index 6468de13..95decf1e 100644
--- a/app/assets/javascripts/exercises.js.erb
+++ b/app/assets/javascripts/exercises.js.erb
@@ -9,11 +9,8 @@ $(function() {
     var element = $('#dummies').children().first().clone();
     var html = $('<div>').append(element).html().replace(/index/g, new Date().getTime());
     $('#files').append(html);
-    $('#files select').chosen({
-      disable_search_threshold: 5,
-      search_contains: true
-    });
     $('#files li:last select[name*="file_type_id"]').val(getSelectedExecutionEnvironment().file_type_id);
+    $('#files li:last select').chosen(window.CodeOcean.CHOSEN_OPTIONS);
     $('body, html').scrollTo('#add-file');
   };
 
diff --git a/app/assets/javascripts/forms.js b/app/assets/javascripts/forms.js
index ce7b4fda..cde3ee68 100644
--- a/app/assets/javascripts/forms.js
+++ b/app/assets/javascripts/forms.js
@@ -1,4 +1,10 @@
 $(function() {
+  var CHOSEN_OPTIONS = {
+    allow_single_deselect: true,
+    disable_search_threshold: 5,
+    search_contains: true
+  };
+
   $('form').on('click', '.toggle-input', function(event) {
     event.preventDefault();
     if (!$(this).hasClass('disabled')) {
@@ -14,9 +20,8 @@ $(function() {
     }
   });
 
-  $('select:visible').chosen({
-    allow_single_deselect: true,
-    disable_search_threshold: 5,
-    search_contains: true
-  });
+  window.CodeOcean = window.CodeOcean || {};
+  window.CodeOcean.CHOSEN_OPTIONS = CHOSEN_OPTIONS;
+
+  $('select:visible').chosen(CHOSEN_OPTIONS);
 });