diff --git a/web/typo3conf/ext/ep_products/Classes/Traits/RequestArgumentTypeConversionTrait.php b/web/typo3conf/ext/ep_products/Classes/Traits/RequestArgumentTypeConversionTrait.php
index bb6138b4..30bc5327 100644
--- a/web/typo3conf/ext/ep_products/Classes/Traits/RequestArgumentTypeConversionTrait.php
+++ b/web/typo3conf/ext/ep_products/Classes/Traits/RequestArgumentTypeConversionTrait.php
@@ -95,7 +95,7 @@ trait RequestArgumentTypeConversionTrait
                 $filterSettings['dateTo'] = !empty($filterSettings['dateTo']) ? new \DateTime($filterSettings['dateTo']) : null;
 
                 if (!empty($filterSettings['bus'])) {
-                    $filterSettings['bus'] = $filterSettings['bus'] === 'true';
+                    $filterSettings['bus'] = in_array($filterSettings['bus'], [ 'true', '1' ], true);
                 } else {
                     $filterSettings['bus'] = null;
                 }