diff --git a/app/assets/javascripts/exercises.js.erb b/app/assets/javascripts/exercises.js.erb
index 57b64fbd..e6130964 100644
--- a/app/assets/javascripts/exercises.js.erb
+++ b/app/assets/javascripts/exercises.js.erb
@@ -128,9 +128,10 @@ $(document).on('turbolinks:load', function () {
var buildCheckboxes = function () {
$('tbody tr').each(function (index, element) {
var td = $('td.public', element);
- var checkbox = $('', {
+ var checkbox = $('', {
checked: td.data('value'),
- type: 'checkbox'
+ type: 'checkbox',
+ class: 'form-check-input',
});
td.on('click', function (event) {
event.preventDefault();