diff --git a/tests/functions_acp/build_cfg_template_test.php b/tests/functions_acp/build_cfg_template_test.php
index c573c7cdb0..7bf85a3532 100644
--- a/tests/functions_acp/build_cfg_template_test.php
+++ b/tests/functions_acp/build_cfg_template_test.php
@@ -7,8 +7,8 @@
 *
 */
 
-require_once dirname(__FILE__) . 'user_mock.php';
-require_once dirname(__FILE__) . '../../phpBB/includes/functions_acp.php';
+require_once dirname(__FILE__) . '/../mock/lang.php';
+require_once dirname(__FILE__) . '/../../phpBB/includes/functions_acp.php';
 
 class phpbb_functions_acp_build_cfg_template_test extends phpbb_test_case
 {
diff --git a/tests/functions_acp/build_select_test.php b/tests/functions_acp/build_select_test.php
index a4f5e419ea..7079e69f12 100644
--- a/tests/functions_acp/build_select_test.php
+++ b/tests/functions_acp/build_select_test.php
@@ -7,8 +7,8 @@
 *
 */
 
-require_once dirname(__FILE__) . 'user_mock.php';
-require_once dirname(__FILE__) . '../../phpBB/includes/functions_acp.php';
+require_once dirname(__FILE__) . '/../mock/lang.php';
+require_once dirname(__FILE__) . '/../../phpBB/includes/functions_acp.php';
 
 class phpbb_functions_acp_built_select_test extends phpbb_test_case
 {
diff --git a/tests/functions_acp/h_radio_test.php b/tests/functions_acp/h_radio_test.php
index 924b502ede..18cb5d031e 100644
--- a/tests/functions_acp/h_radio_test.php
+++ b/tests/functions_acp/h_radio_test.php
@@ -7,8 +7,8 @@
 *
 */
 
-require_once dirname(__FILE__) . 'user_mock.php';
-require_once dirname(__FILE__) . '../../phpBB/includes/functions_acp.php';
+require_once dirname(__FILE__) . '/../mock/lang.php';
+require_once dirname(__FILE__) . '/../../phpBB/includes/functions_acp.php';
 
 class phpbb_functions_acp_h_radio_test extends phpbb_test_case
 {
diff --git a/tests/functions_acp/validate_config_vars_test.php b/tests/functions_acp/validate_config_vars_test.php
index 722d0ebddb..aa63bc38df 100644
--- a/tests/functions_acp/validate_config_vars_test.php
+++ b/tests/functions_acp/validate_config_vars_test.php
@@ -7,8 +7,8 @@
 *
 */
 
-require_once dirname(__FILE__) . 'user_mock.php';
-require_once dirname(__FILE__) . '../../phpBB/includes/functions_acp.php';
+require_once dirname(__FILE__) . '/../mock/lang.php';
+require_once dirname(__FILE__) . '/../../phpBB/includes/functions_acp.php';
 
 class phpbb_functions_acp_validate_config_vars_test extends phpbb_test_case
 {
diff --git a/tests/functions_acp/validate_range_test.php b/tests/functions_acp/validate_range_test.php
index fb1d15c032..07c9538c66 100644
--- a/tests/functions_acp/validate_range_test.php
+++ b/tests/functions_acp/validate_range_test.php
@@ -7,8 +7,8 @@
 *
 */
 
-require_once dirname(__FILE__) . 'user_mock.php';
-require_once dirname(__FILE__) . '../../phpBB/includes/functions_acp.php';
+require_once dirname(__FILE__) . '/../mock/lang.php';
+require_once dirname(__FILE__) . '/../../phpBB/includes/functions_acp.php';
 
 class phpbb_functions_acp_validate_range_test extends phpbb_test_case
 {
diff --git a/tests/functions_acp/user_mock.php b/tests/mock/lang.php
similarity index 100%
rename from tests/functions_acp/user_mock.php
rename to tests/mock/lang.php