diff --git a/tests/LoadTest.php b/tests/LoadTest.php
index d3458d3..78e9e43 100644
--- a/tests/LoadTest.php
+++ b/tests/LoadTest.php
@@ -42,6 +42,7 @@ class LoadTest extends PHPUnit_Framework_TestCase
         self::$autoload_array = array('Db' => '/lib/core/model/Db.php', 'DbDriver' => '/lib/core/model/DbDriver.php');
 
         vfsStreamWrapper::register();
+        vfsStream::setup();
         $this->root = vfsStream::create(
             array(
                  'lib' => array(
diff --git a/tests/logger/FileLoggerTest.php b/tests/logger/FileLoggerTest.php
index acea352..889f985 100644
--- a/tests/logger/FileLoggerTest.php
+++ b/tests/logger/FileLoggerTest.php
@@ -30,6 +30,7 @@ class FileLoggerTest extends PHPUnit_Framework_TestCase
     public function setUp()
     {
         vfsStreamWrapper::register();
+        vfsStream::setup();
         $root = vfsStream::create(array());
         vfsStreamWrapper::setRoot($root);
         $this->conf = array('logger' => 'FileLogger', 'filepath' => vfsStream::url('root/log.txt'));
diff --git a/tests/view/PHPViewTest.php b/tests/view/PHPViewTest.php
index c4aa69a..99dcc0e 100644
--- a/tests/view/PHPViewTest.php
+++ b/tests/view/PHPViewTest.php
@@ -28,6 +28,7 @@ class PHPViewTest extends PHPUnit_Framework_TestCase
     public function setUp()
     {
         vfsStreamWrapper::register();
+        vfsStream::setup();
         $root = vfsStream::create(array());
         vfsStreamWrapper::setRoot($root);
         $views_dir = vfsStream::newDirectory('views');