diff --git a/public/typo3conf/ext/ep_products/Classes/Service/FilterService.php b/public/typo3conf/ext/ep_products/Classes/Service/FilterService.php
index e732895a..1f56a7a2 100644
--- a/public/typo3conf/ext/ep_products/Classes/Service/FilterService.php
+++ b/public/typo3conf/ext/ep_products/Classes/Service/FilterService.php
@@ -309,7 +309,7 @@ class FilterService implements SingletonInterface
         return $this->getNormalizedFilterSettings($filterSettings);
     }
 
-    protected function getTypoScriptSettings(): array
+    protected function getTypoScriptSettings(): ?array
     {
         /** @var ConfigurationManager $configurationManager */
         $configurationManager = GeneralUtility::makeInstance(ConfigurationManager::class);