diff --git a/src/Symfony/Bundle/SecurityBundle/Security/FirewallConfig.php b/src/Symfony/Bundle/SecurityBundle/Security/FirewallConfig.php
index b720bf9cad..dc48c459a2 100644
--- a/src/Symfony/Bundle/SecurityBundle/Security/FirewallConfig.php
+++ b/src/Symfony/Bundle/SecurityBundle/Security/FirewallConfig.php
@@ -14,7 +14,7 @@ namespace Symfony\Bundle\SecurityBundle\Security;
 /**
  * @author Robin Chalas <robin.chalas@gmail.com>
  */
-class FirewallConfig
+final class FirewallConfig
 {
     private $name;
     private $requestMatcher;
diff --git a/src/Symfony/Bundle/SecurityBundle/Tests/Security/FirewallContextTest.php b/src/Symfony/Bundle/SecurityBundle/Tests/Security/FirewallContextTest.php
index 86aecc1aa2..cce2a5b47f 100644
--- a/src/Symfony/Bundle/SecurityBundle/Tests/Security/FirewallContextTest.php
+++ b/src/Symfony/Bundle/SecurityBundle/Tests/Security/FirewallContextTest.php
@@ -20,10 +20,7 @@ class FirewallContextTest extends \PHPUnit_Framework_TestCase
 {
     public function testGetters()
     {
-        $config = $this
-            ->getMockBuilder(FirewallConfig::class)
-            ->disableOriginalConstructor()
-            ->getMock();
+        $config = new FirewallConfig('main', 'request_matcher');
 
         $exceptionListener = $this
             ->getMockBuilder(ExceptionListener::class)