diff --git a/src/Symfony/Component/Routing/Tests/RouterTest.php b/src/Symfony/Component/Routing/Tests/RouterTest.php
index 4fba383a7c..3e3d43f82c 100644
--- a/src/Symfony/Component/Routing/Tests/RouterTest.php
+++ b/src/Symfony/Component/Routing/Tests/RouterTest.php
@@ -102,7 +102,7 @@ class RouterTest extends TestCase
 
         $this->loader->expects($this->once())
             ->method('load')->with('routing.yml', null)
-            ->will($this->returnValue($this->getMockBuilder('Symfony\Component\Routing\RouteCollection')->getMock()));
+            ->will($this->returnValue(new RouteCollection()));
 
         $this->assertInstanceOf('Symfony\\Component\\Routing\\Matcher\\UrlMatcher', $this->router->getMatcher());
     }
@@ -124,7 +124,7 @@ class RouterTest extends TestCase
 
         $this->loader->expects($this->once())
             ->method('load')->with('routing.yml', null)
-            ->will($this->returnValue($this->getMockBuilder('Symfony\Component\Routing\RouteCollection')->getMock()));
+            ->will($this->returnValue(new RouteCollection()));
 
         $this->assertInstanceOf('Symfony\\Component\\Routing\\Generator\\UrlGenerator', $this->router->getGenerator());
     }