diff --git a/app/Livewire/Ui/Domain/Modal/DomainCreateModal.php b/app/Livewire/Ui/Domain/Modal/DomainCreateModal.php
index f831150..b525e58 100644
--- a/app/Livewire/Ui/Domain/Modal/DomainCreateModal.php
+++ b/app/Livewire/Ui/Domain/Modal/DomainCreateModal.php
@@ -30,7 +30,7 @@ class DomainCreateModal extends ModalComponent
 
     // Quotas
     public int $default_quota_mb;                 // Standard pro Mailbox
-    public ?int $max_quota_per_mailbox_mb = null;  // optionales Limit pro Mailbox
+    public int $max_quota_per_mailbox_mb;         // optionales Limit pro Mailbox
     public int $total_quota_mb;                   // Domain-Gesamt (0 = unbegrenzt NICHT vorgesehen hier)
 
     // Rate-Limit (Domain-weit)