diff --git a/application/forms/Account/TwoFactorEnrollmentForm.php b/application/forms/Account/TwoFactorEnrollmentForm.php
index 66b30e4c4..7336751fc 100644
--- a/application/forms/Account/TwoFactorEnrollmentForm.php
+++ b/application/forms/Account/TwoFactorEnrollmentForm.php
@@ -5,12 +5,14 @@
 
 namespace Icinga\Forms\Account;
 
+use Icinga\Application\ClassLoader;
 use Icinga\Application\Hook\TwoFactorHook;
 use Icinga\Authentication\Auth;
 use Icinga\Authentication\TwoFactor;
 use Icinga\Web\Notification;
 use Icinga\Web\RememberMe;
 use Icinga\Web\Session;
+use ipl\Html\Attributes;
 use ipl\Html\FormElement\FieldsetElement;
 use ipl\Web\Common\CsrfCounterMeasure;
 use ipl\Web\Common\FormUid;
@@ -72,7 +74,12 @@ class TwoFactorEnrollmentForm extends CompatForm
             return;
         }
 
-        $configFieldset = new FieldsetElement($twoFactor->getName());
+        $configFieldset = new FieldsetElement(
+            $twoFactor->getName(),
+            Attributes::create([
+                'class' => 'icinga-module module-' . ClassLoader::extractModuleName(get_class($twoFactor))
+            ])
+        );
         $this->addElement($configFieldset);
         $twoFactor->assembleEnrollmentFormElements($configFieldset);