diff --git a/System/Abstracts/BaseApplication.php b/System/Abstracts/BaseApplication.php
index 372e68c3..e69a2b44 100644
--- a/System/Abstracts/BaseApplication.php
+++ b/System/Abstracts/BaseApplication.php
@@ -75,7 +75,7 @@ abstract class BaseApplication extends Component
 		$this->parseEvents($config);
 		$this->initErrorHandler();
 		$this->enableEnvConfig();
-		$this->mapping($config['mapping']);
+		$this->mapping($config['mapping'] ?? []);
 
 		parent::__construct();
 	}