diff --git a/core/modules/locale/lib/Drupal/locale/Tests/LocaleExportTest.php b/core/modules/locale/lib/Drupal/locale/Tests/LocaleExportTest.php
index 9c63839..6ea09bd 100644
--- a/core/modules/locale/lib/Drupal/locale/Tests/LocaleExportTest.php
+++ b/core/modules/locale/lib/Drupal/locale/Tests/LocaleExportTest.php
@@ -41,7 +41,7 @@ class LocaleExportTest extends WebTestBase {
     $this->drupalLogin($this->admin_user);
 
     // Set the translation file directory to something writable.
-    $destination = conf_path() . '/files/translations';
+    $destination = 'translations://';
     file_prepare_directory($destination, FILE_CREATE_DIRECTORY);
 
     // Copy test po files to the same directory.
diff --git a/core/modules/locale/lib/Drupal/locale/Tests/LocaleFileImportStatus.php b/core/modules/locale/lib/Drupal/locale/Tests/LocaleFileImportStatus.php
index 53cadc0..2ecd2f1 100644
--- a/core/modules/locale/lib/Drupal/locale/Tests/LocaleFileImportStatus.php
+++ b/core/modules/locale/lib/Drupal/locale/Tests/LocaleFileImportStatus.php
@@ -36,7 +36,7 @@ class LocaleFileImportStatus extends WebTestBase {
     $this->drupalLogin($admin_user);
 
     // Set the translation file directory to something writable.
-    $destination = conf_path() . '/files/translations';
+    $destination = 'translations://';
     file_prepare_directory($destination, FILE_CREATE_DIRECTORY);
 
     // Copy test po files to the same directory.
diff --git a/core/modules/locale/lib/Drupal/locale/Tests/LocaleImportFunctionalTest.php b/core/modules/locale/lib/Drupal/locale/Tests/LocaleImportFunctionalTest.php
index d87af40..2852165 100644
--- a/core/modules/locale/lib/Drupal/locale/Tests/LocaleImportFunctionalTest.php
+++ b/core/modules/locale/lib/Drupal/locale/Tests/LocaleImportFunctionalTest.php
@@ -37,7 +37,7 @@ class LocaleImportFunctionalTest extends WebTestBase {
   function setUp() {
     parent::setUp();
     // Set the translation file directory to something writable.
-    $destination = conf_path() . '/files/translations';
+    $destination = 'translations://';
     file_prepare_directory($destination, FILE_CREATE_DIRECTORY);
 
     // Copy test po files to the same directory.