diff --git a/classes/Enum.php b/classes/Enum.php
index <HASH>..<HASH> 100755
--- a/classes/Enum.php
+++ b/classes/Enum.php
@@ -12,7 +12,7 @@
 
 abstract class Enum {
 
-  private function __construct(){}
+  final private function __construct(){}
 
   protected static function __constants(){
     static $_consts = null;
Enum::__constructor now is final