diff --git a/src/Anonym/Bootstrap/AliasNotFoundException.php b/src/Anonym/Bootstrap/AliasNotFoundException.php
index <HASH>..<HASH> 100644
--- a/src/Anonym/Bootstrap/AliasNotFoundException.php
+++ b/src/Anonym/Bootstrap/AliasNotFoundException.php
@@ -15,6 +15,11 @@ use Exception;
 class AliasNotFoundException extends Exception
 {
 
+    /**
+     * throw the exception
+     *
+     * @param string $message the message of exception
+     */
     public function __construct($message = '')
     {
         $this->message = $message;
added comment lines to __construct method