diff --git a/tests/simple_test.php b/tests/simple_test.php
index 95b7e9d4..b13701a4 100644
--- a/tests/simple_test.php
+++ b/tests/simple_test.php
@@ -1,6 +1,8 @@
 <?php
 
-require_once('../lib/simpletest/autorun.php');
+require_once('lib/simpletest/autorun.php');
+require_once('lib/simpletest/unit_tester.php');
+require_once('lib/simpletest/reporter.php');
 
 class SimpleTestCase extends UnitTestCase {