diff --git a/app/views/admin/semester/edit.php b/app/views/admin/semester/edit.php
index 9ef8b6fa7b1a061a30d07f3c8813a21be86bb3df..26451fd9ec215664d50e8b3ec249689332c31291 100644
--- a/app/views/admin/semester/edit.php
+++ b/app/views/admin/semester/edit.php
@@ -4,7 +4,8 @@
  * @var Semester $semester
  */
 ?>
-<form method="post" action="<?= $controller->url_for('admin/semester/edit/' . $semester->id) ?>" data-dialog="size=auto" class="default">
+<form method="post" action="<?= $controller->url_for('admin/semester/edit/' . $semester->id) ?>"
+      data-dialog="size=auto" class="default" data-secure>
     <?= CSRFProtection::tokenTag() ?>
 
     <fieldset>