diff --git a/framework/base/Application.php b/framework/base/Application.php
index badf2ce938..db74813544 100644
--- a/framework/base/Application.php
+++ b/framework/base/Application.php
@@ -52,7 +52,7 @@ use yii\base\Exception;
  * @property CCache $cache Returns the cache component.
  * @property CPhpMessageSource $coreMessages Returns the core message translations.
  * @property CDateFormatter $dateFormatter Returns the locale-dependent date formatter.
- * @property CDbConnection $db Returns the database connection component.
+ * @property \yii\db\dao\Connection $db Returns the database connection component.
  * @property CErrorHandler $errorHandler Returns the error handler component.
  * @property string $extensionPath Returns the root directory that holds all third-party extensions.
  * @property string $id Returns the unique identifier for the application.
@@ -130,7 +130,7 @@ class Application extends Module
 		$this->setBasePath($basePath);
 		$this->registerDefaultAliases();
 		$this->registerCoreComponents();
-		parent::__construct($config);
+		parent::__construct($id, $this, $config);
 	}
 
 	/**