diff --git a/module/CLI/src/Model/CustomizableAppConfig.php b/module/CLI/src/Model/CustomizableAppConfig.php
index b228baa8..bf71c1eb 100644
--- a/module/CLI/src/Model/CustomizableAppConfig.php
+++ b/module/CLI/src/Model/CustomizableAppConfig.php
@@ -225,7 +225,7 @@ final class CustomizableAppConfig implements ArraySerializableInterface
         $config = [
             'app_options' => [
                 'secret_key' => $this->app['SECRET'],
-                'disable_track_param' => $this->app['DISABLE_TRACK_PARAM'],
+                'disable_track_param' => $this->app['DISABLE_TRACK_PARAM'] ?? null,
             ],
             'entity_manager' => [
                 'connection' => [