diff --git a/Message/Http/Header.php b/Message/Http/Header.php
index 168343f94..4cbbf972a 100644
--- a/Message/Http/Header.php
+++ b/Message/Http/Header.php
@@ -197,6 +197,8 @@ class Header extends HeaderAbstract
             }
         }
 
+        header("X-Powered-By: hidden");
+
         $this->lock();
     }