diff --git a/Resources/views/customers/partials/customers_table.blade.php b/Resources/views/customers/partials/customers_table.blade.php
index e70eb3c..378f33e 100644
--- a/Resources/views/customers/partials/customers_table.blade.php
+++ b/Resources/views/customers/partials/customers_table.blade.php
@@ -5,7 +5,7 @@
                 @foreach ($customers as $customer)
                     <a href="{{ Eventy::filter('customer.card.url', route('customers.update', ['id' => $customer->id]), $customer) }}" class="card hover-shade" @action('customer.card.link', $customer) >
                         <img src="{{ $customer->getPhotoUrl() }}" />
-                        @if ($customer->mailbox == null)
+                        @if ($customer->mailbox_id == null)
                             <p style="font-size:12px; color: red;">{{ __('Warning: no mailbox') }}</p>
 						@endif
                         <h4 title="{{ $customer->first_name }} {{ $customer->last_name }}">{{ $customer->first_name }} {{ $customer->last_name }}</h4>