diff --git a/Lib/AppMigrator.php b/Lib/AppMigrator.php
index 585768499eadb247618fb6ef078ce9e01ff0223f..f23f08a14c2f7001e1163082a4b0b5c3834b1607 100644
--- a/Lib/AppMigrator.php
+++ b/Lib/AppMigrator.php
@@ -12,6 +12,10 @@ class AppMigrator {
   private $env_class;
   private $db_class;
   private $migrator_class;
+  private $conn;
+  private $db_name;
+  private $uname;
+  private $passwd;
 
   public function __construct() {
     $this->env_class = Dependency::get_dependency(IEnvironment::class);