diff --git a/System/Pool/Connection.php b/System/Pool/Connection.php
index 3e66d2f9..f146be07 100644
--- a/System/Pool/Connection.php
+++ b/System/Pool/Connection.php
@@ -154,7 +154,7 @@ class Connection extends Pool
 			PDO::ATTR_EMULATE_PREPARES   => false,
 			PDO::ATTR_CASE               => PDO::CASE_NATURAL,
 			PDO::ATTR_TIMEOUT            => $this->timeout,
-			PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES ' . $config['charset'] ?? 'utf8mb4'
+			PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES ' . ($config['charset'] ?? 'utf8mb4')
 		]);
 		$link->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
 		$link->setAttribute(PDO::ATTR_STRINGIFY_FETCHES, false);