diff --git a/src/Symfony/Component/ClassLoader/Tests/ClassCollectionLoaderTest.php b/src/Symfony/Component/ClassLoader/Tests/ClassCollectionLoaderTest.php
index fb91fadae7cc..b4ece23561b1 100644
--- a/src/Symfony/Component/ClassLoader/Tests/ClassCollectionLoaderTest.php
+++ b/src/Symfony/Component/ClassLoader/Tests/ClassCollectionLoaderTest.php
@@ -31,14 +31,14 @@ public function testTraitDependencies()
         $m = $r->getMethod('getOrderedClasses');
         $m->setAccessible(true);
 
-        $ordered = $m->invoke('Symfony\Component\ClassLoader\ClassCollectionLoader', array('CTFoo'));
+        $ordered = $m->invoke(null, array('CTFoo'));
 
         $this->assertEquals(
             array('TD', 'TC', 'TB', 'TA', 'TZ', 'CTFoo'),
             array_map(function ($class) { return $class->getName(); }, $ordered)
         );
 
-        $ordered = $m->invoke('Symfony\Component\ClassLoader\ClassCollectionLoader', array('CTBar'));
+        $ordered = $m->invoke(null, array('CTBar'));
 
         $this->assertEquals(
             array('TD', 'TZ', 'TC', 'TB', 'TA', 'CTBar'),
@@ -62,7 +62,7 @@ public function testClassReordering(array $classes)
         $m = $r->getMethod('getOrderedClasses');
         $m->setAccessible(true);
 
-        $ordered = $m->invoke('Symfony\Component\ClassLoader\ClassCollectionLoader', $classes);
+        $ordered = $m->invoke(null, $classes);
 
         $this->assertEquals($expected, array_map(function ($class) { return $class->getName(); }, $ordered));
     }
@@ -120,7 +120,7 @@ public function testClassWithTraitsReordering(array $classes)
         $m = $r->getMethod('getOrderedClasses');
         $m->setAccessible(true);
 
-        $ordered = $m->invoke('Symfony\Component\ClassLoader\ClassCollectionLoader', $classes);
+        $ordered = $m->invoke(null, $classes);
 
         $this->assertEquals($expected, array_map(function ($class) { return $class->getName(); }, $ordered));
     }
@@ -162,7 +162,7 @@ public function testFixClassWithTraitsOrdering()
         $m = $r->getMethod('getOrderedClasses');
         $m->setAccessible(true);
 
-        $ordered = $m->invoke('Symfony\Component\ClassLoader\ClassCollectionLoader', $classes);
+        $ordered = $m->invoke(null, $classes);
 
         $this->assertEquals($expected, array_map(function ($class) { return $class->getName(); }, $ordered));
     }