diff --git a/src/Processor/Chromium.php b/src/Processor/Chromium.php
index b09ca7d..157f8df 100644
--- a/src/Processor/Chromium.php
+++ b/src/Processor/Chromium.php
@@ -33,7 +33,7 @@ class Chromium extends Processor
     protected function buildPdf(PrintAbstract $document, object $config): string
     {
         $web2printConfig = Config::getWeb2PrintConfig();
-        $chromiumConfig = $web2printConfig['chromiumSettings'];
+        $chromiumConfig = $web2printConfig['chromiumSettings'] ?? '';
         $chromiumConfig = json_decode($chromiumConfig, true);
 
         $params = [