diff --git a/src/Mysql/PDO.php b/src/Mysql/PDO.php
index 04c4006..b7b244b 100644
--- a/src/Mysql/PDO.php
+++ b/src/Mysql/PDO.php
@@ -44,6 +44,7 @@ class PDO implements StopHeartbeatCheck
 	 */
 	public function __construct(array $config)
 	{
+		var_dump($config);
 		$this->dbname = $config['dbname'];
 		$this->cds = $config['cds'];
 		$this->username = $config['username'];