diff --git a/tests/admin/ControllerRetailcrmAdminTest.php b/tests/admin/ControllerRetailcrmAdminTest.php
index 7287b2e..ad382c1 100644
--- a/tests/admin/ControllerRetailcrmAdminTest.php
+++ b/tests/admin/ControllerRetailcrmAdminTest.php
@@ -1,6 +1,6 @@
 <?php
 
-require_once __DIR__ . '/../' . getenv('OPENCART') . '/TestCase.php';
+require_once __DIR__ . '/../' . getenv('TEST_SUITE') . '/TestCase.php';
 
 class ControllerRetailcrmAdminTest extends TestCase
 {
diff --git a/tests/admin/ModelRetailcrmCustomerAdminTest.php b/tests/admin/ModelRetailcrmCustomerAdminTest.php
index a35d462..c294b13 100644
--- a/tests/admin/ModelRetailcrmCustomerAdminTest.php
+++ b/tests/admin/ModelRetailcrmCustomerAdminTest.php
@@ -1,6 +1,6 @@
 <?php
 
-require_once __DIR__ . '/../' . getenv('OPENCART') . '/TestCase.php';
+require_once __DIR__ . '/../' . getenv('TEST_SUITE') . '/TestCase.php';
 
 class ModelRetailcrmCustomerAdminTest extends TestCase
 {
diff --git a/tests/admin/ModelRetailcrmEventAdminTest.php b/tests/admin/ModelRetailcrmEventAdminTest.php
index 91e55d2..02bf663 100644
--- a/tests/admin/ModelRetailcrmEventAdminTest.php
+++ b/tests/admin/ModelRetailcrmEventAdminTest.php
@@ -1,6 +1,6 @@
 <?php
 
-require_once __DIR__ . '/../' . getenv('OPENCART') . '/TestCase.php';
+require_once __DIR__ . '/../' . getenv('TEST_SUITE') . '/TestCase.php';
 
 class ModelRetailcrmEventAdminTest extends TestCase
 {
diff --git a/tests/admin/ModelRetailcrmOrderAdminTest.php b/tests/admin/ModelRetailcrmOrderAdminTest.php
index 750bfa7..497eadc 100644
--- a/tests/admin/ModelRetailcrmOrderAdminTest.php
+++ b/tests/admin/ModelRetailcrmOrderAdminTest.php
@@ -1,6 +1,6 @@
 <?php
 
-require_once __DIR__ . '/../' . getenv('OPENCART') . '/TestCase.php';
+require_once __DIR__ . '/../' . getenv('TEST_SUITE') . '/TestCase.php';
 
 class ModelRetailcrmOrderAdminTest extends TestCase
 {
diff --git a/tests/admin/ModelRetailcrmPricesAdminTest.php b/tests/admin/ModelRetailcrmPricesAdminTest.php
index 9284983..88d99e8 100644
--- a/tests/admin/ModelRetailcrmPricesAdminTest.php
+++ b/tests/admin/ModelRetailcrmPricesAdminTest.php
@@ -1,6 +1,6 @@
 <?php
 
-require_once __DIR__ . '/../' . getenv('OPENCART') . '/TestCase.php';
+require_once __DIR__ . '/../' . getenv('TEST_SUITE') . '/TestCase.php';
 
 class ModelRetailcrmPricesAdminTest extends TestCase
 {
diff --git a/tests/catalog/ControllerRetailcrmApiCatalogTest.php b/tests/catalog/ControllerRetailcrmApiCatalogTest.php
index 2f54db3..1db1df7 100644
--- a/tests/catalog/ControllerRetailcrmApiCatalogTest.php
+++ b/tests/catalog/ControllerRetailcrmApiCatalogTest.php
@@ -1,6 +1,6 @@
 <?php
 
-require_once __DIR__ . '/../' . getenv('OPENCART') . '/TestCase.php';
+require_once __DIR__ . '/../' . getenv('TEST_SUITE') . '/TestCase.php';
 
 class ControllerRetailcrmApiCatalogTest extends TestCase
 {
diff --git a/tests/catalog/ModelRetailcrmCustomerCatalogTest.php b/tests/catalog/ModelRetailcrmCustomerCatalogTest.php
index badcbc7..7fbf523 100644
--- a/tests/catalog/ModelRetailcrmCustomerCatalogTest.php
+++ b/tests/catalog/ModelRetailcrmCustomerCatalogTest.php
@@ -1,6 +1,6 @@
 <?php
 
-require_once __DIR__ . '/../' . getenv('OPENCART') . '/TestCase.php';
+require_once __DIR__ . '/../' . getenv('TEST_SUITE') . '/TestCase.php';
 
 class ModelRetailcrmCustomerCatalogTest extends TestCase
 {
diff --git a/tests/catalog/ModelRetailcrmOrderCatalogTest.php b/tests/catalog/ModelRetailcrmOrderCatalogTest.php
index 0d7ae99..4a9bc93 100644
--- a/tests/catalog/ModelRetailcrmOrderCatalogTest.php
+++ b/tests/catalog/ModelRetailcrmOrderCatalogTest.php
@@ -1,6 +1,6 @@
 <?php
 
-require_once __DIR__ . '/../' . getenv('OPENCART') . '/TestCase.php';
+require_once __DIR__ . '/../' . getenv('TEST_SUITE') . '/TestCase.php';
 
 class ModelRetailcrmOrderCatalogTest extends TestCase
 {