diff --git a/tests/functions/validate_password_test.php b/tests/functions/validate_password_test.php
index 4639f6cc89..82c5fa03c1 100644
--- a/tests/functions/validate_password_test.php
+++ b/tests/functions/validate_password_test.php
@@ -7,6 +7,7 @@
 *
 */
 
+require_once dirname(__FILE__) . '/../../phpBB/includes/functions.php';
 require_once dirname(__FILE__) . '/../../phpBB/includes/functions_user.php';
 require_once dirname(__FILE__) . '/validate_data_helper.php';
 
diff --git a/tests/regex/password_complexity_test.php b/tests/regex/password_complexity_test.php
index 07453555ee..e2aefdaac8 100644
--- a/tests/regex/password_complexity_test.php
+++ b/tests/regex/password_complexity_test.php
@@ -7,6 +7,7 @@
 *
 */
 
+require_once dirname(__FILE__) . '/../../phpBB/includes/functions.php';
 require_once dirname(__FILE__) . '/../../phpBB/includes/functions_user.php';
 
 class phpbb_password_complexity_test extends phpbb_test_case