diff --git a/tests/functional/extension_module_test.php b/tests/functional/extension_module_test.php
index c573ea5410..c31a892ce9 100644
--- a/tests/functional/extension_module_test.php
+++ b/tests/functional/extension_module_test.php
@@ -6,8 +6,6 @@
 * @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
 *
 */
-
-require_once dirname(__FILE__) . '/../../phpBB/includes/db/db_tools.php';
 require_once dirname(__FILE__) . '/../../phpBB/includes/acp/acp_modules.php';
 
 /**