diff --git a/test/php-unit-tests/unittestautoload.php b/test/php-unit-tests/unittestautoload.php
index fcc03e10bb..1e96a56bfc 100644
--- a/test/php-unit-tests/unittestautoload.php
+++ b/test/php-unit-tests/unittestautoload.php
@@ -1,5 +1,9 @@
 <?php
-include('vendor/autoload.php');
 
-include('ItopTestCase.php');
-include('ItopDataTestCase.php');
+// Main autoload, this is the one to use in the PHPUnit configuration
+// It is customized to include both
+// - Vendors
+require_once 'vendor/autoload.php';
+// - Custom test case PHP classes
+require_once 'ItopTestCase.php';
+require_once 'ItopDataTestCase.php';