diff --git a/behat_javascript.behat.inc b/behat_javascript.behat.inc
index 076ea3b667403a38debf5af4bac887ff31ef4d8e..750ad638ab64e473510d0e4ec2f63f1689a52eea 100644
--- a/behat_javascript.behat.inc
+++ b/behat_javascript.behat.inc
@@ -49,7 +49,7 @@ class BehatJavascriptContext extends DrupalSubContextBase {
   public function __construct(DrupalDriverManager $drupal) {
     parent::__construct($drupal);
     $settings = \Drupal::config('behat_javascript.settings');
-    $this->ignoredErrors = array_filter(explode("\n", $settings->get('ignored_errors')));
+    $this->ignoredErrors = array_filter(explode("\n", $settings->get('ignored_errors') ?? ''));
   }
 
   /**