diff --git a/Layout/default/Preorder/Index.php b/Layout/default/Preorder/Index.php
index 9be42013f..0fa13eea7 100644
--- a/Layout/default/Preorder/Index.php
+++ b/Layout/default/Preorder/Index.php
@@ -427,6 +427,7 @@ $pagination_entity_name = "Vorbestellungen";
                                         <li><a class="dropdown-item" href="<?=self::getUrl("Preorder", "Index", ["filter" => ["preorder_status_flags" => [4], "connection_type" => ["apartment", "apartment-building"], "borderpoint" => "all"]])?>">Wohnung - Verkabelung erledigt</a></li>
                                         <?php if ($me->isAdmin() || $me->address->id == 209): ?>
                                         <li><a class="dropdown-item" href="<?=self::getUrl("Preorder", "Index", ["filter" => ["onlyShowCustomMailSent" => 1]])?>">Bestellungen mit gesendeter Custom-300 Benachrichtigung</a></li>
+                                        <input type="hidden" name="filter[onlyShowCustomMailSent]" value="<?= (isset($filter['onlyShowCustomMailSent']) && $filter['onlyShowCustomMailSent'] == 1) ? 1 : 0 ?>"/>
                                         <?php endif; ?>
                                     </ul>
                                 </div>