diff --git a/Classes/Service/ConfigurationService.php b/Classes/Service/ConfigurationService.php
index e62aa6a..5c6bfbd 100644
--- a/Classes/Service/ConfigurationService.php
+++ b/Classes/Service/ConfigurationService.php
@@ -81,7 +81,7 @@ public static function showEventId(): bool
     public static function getLogWriterComponentIgnorelist(): array
     {
         $ignoreList = self::getExtensionConfiguration('logWriterComponentBlacklist') ?? self::getExtensionConfiguration(self::LOGWRITER_COMPONENT_IGNORELIST);
-        return GeneralUtility::trimExplode(',', $ignoreList, true);
+        return GeneralUtility::trimExplode(',', $ignoreList ?? '', true);
     }
 
     public static function shouldDisableDatabaseLogging(): bool