diff --git a/Classes/Controller/Backend/Order/OrderController.php b/Classes/Controller/Backend/Order/OrderController.php
index ef62aa64..9ca6e364 100644
--- a/Classes/Controller/Backend/Order/OrderController.php
+++ b/Classes/Controller/Backend/Order/OrderController.php
@@ -69,7 +69,7 @@ public function listAction(int $currentPage = 1): ResponseInterface
         $this->moduleTemplate->assign('settings', $this->settings);
         $this->moduleTemplate->assign('searchArguments', $this->searchArguments);
 
-        $itemsPerPage = (int)($this->settings['itemsPerPage'] ?? 20);
+        $itemsPerPage = (isset($this->settings['itemsPerPage']) && is_numeric($this->settings['itemsPerPage'])) ? (int)$this->settings['itemsPerPage'] : 20;
 
         $orderItems = $this->itemRepository->findAll($this->searchArguments);
         $arrayPaginator = new QueryResultPaginator(
diff --git a/Classes/Controller/Order/OrderController.php b/Classes/Controller/Order/OrderController.php
index 07e050a4..bd3316b7 100644
--- a/Classes/Controller/Order/OrderController.php
+++ b/Classes/Controller/Order/OrderController.php
@@ -49,7 +49,7 @@ public function listAction(int $currentPage = 1): ResponseInterface
         $feUserUid = $this->context->getPropertyFromAspect('frontend.user', 'id');
         $orderItems = $this->itemRepository->findBy(['feUser' => $feUserUid]);
 
-        $itemsPerPage = is_numeric($this->settings['itemsPerPage']) ? (int)$this->settings['itemsPerPage'] : 20;
+        $itemsPerPage = (isset($this->settings['itemsPerPage']) && is_numeric($this->settings['itemsPerPage'])) ? (int)$this->settings['itemsPerPage'] : 20;
 
         $arrayPaginator = new QueryResultPaginator(
             $orderItems,