diff --git a/core/modules/locale/lib/Drupal/locale/Tests/LocaleFileImportStatus.php b/core/modules/locale/lib/Drupal/locale/Tests/LocaleFileImportStatus.php
index 25d483d..fc09cab 100644
--- a/core/modules/locale/lib/Drupal/locale/Tests/LocaleFileImportStatus.php
+++ b/core/modules/locale/lib/Drupal/locale/Tests/LocaleFileImportStatus.php
@@ -35,8 +35,14 @@ class LocaleFileImportStatus extends WebTestBase {
     $admin_user = $this->drupalCreateUser(array('administer site configuration', 'administer languages', 'access administration pages'));
     $this->drupalLogin($admin_user);
 
-    // Set the translation file directory.
-    variable_set('locale_translate_file_directory', drupal_get_path('module', 'locale') . '/tests');
+    // Set the translation file directory to something writable.
+    $destination = conf_path() . '/files/translations';;
+    file_prepare_directory($dir, FILE_CREATE_DIRECTORY);
+    variable_set('locale_translate_file_directory', $destination);
+
+    // Copy test po files to the same directory.
+    file_unmanaged_copy(drupal_get_path('module', 'locale') . '/tests/test.de.po', $destination, FILE_EXISTS_ERROR);
+    file_unmanaged_copy(drupal_get_path('module', 'locale') . '/tests/test.xx.po', $destination, FILE_EXISTS_ERROR);
   }
 
   /**
diff --git a/core/modules/locale/lib/Drupal/locale/Tests/LocaleImportFunctionalTest.php b/core/modules/locale/lib/Drupal/locale/Tests/LocaleImportFunctionalTest.php
index 589c555..7d52b45 100644
--- a/core/modules/locale/lib/Drupal/locale/Tests/LocaleImportFunctionalTest.php
+++ b/core/modules/locale/lib/Drupal/locale/Tests/LocaleImportFunctionalTest.php
@@ -36,8 +36,14 @@ class LocaleImportFunctionalTest extends WebTestBase {
 
   function setUp() {
     parent::setUp();
-    // Set the translation file directory.
-    variable_set('locale_translate_file_directory', drupal_get_path('module', 'locale') . '/tests');
+    // Set the translation file directory to something writable.
+    $destination = conf_path() . '/files/translations';;
+    file_prepare_directory($dir, FILE_CREATE_DIRECTORY);
+    variable_set('locale_translate_file_directory', $destination);
+
+    // Copy test po files to the same directory.
+    file_unmanaged_copy(drupal_get_path('module', 'locale') . '/tests/test.de.po', $destination, FILE_EXISTS_ERROR);
+    file_unmanaged_copy(drupal_get_path('module', 'locale') . '/tests/test.xx.po', $destination, FILE_EXISTS_ERROR);
 
     $this->admin_user = $this->drupalCreateUser(array('administer languages', 'translate interface', 'access administration pages'));
     $this->drupalLogin($this->admin_user);
diff --git a/core/modules/locale/lib/Drupal/locale/TranslationsStream.php b/core/modules/locale/lib/Drupal/locale/TranslationsStream.php
new file mode 100644
index 0000000..3028a32
--- /dev/null
+++ b/core/modules/locale/lib/Drupal/locale/TranslationsStream.php
@@ -0,0 +1,34 @@
+<?php
+
+/**
+ * @file
+ * Definition of Drupal\locale\TranslationStream.
+ */
+
+namespace Drupal\locale;
+
+use Drupal\Core\StreamWrapper\LocalStream;
+
+/**
+ * Defines a Drupal translations (translations://) stream wrapper class.
+ *
+ * Provides support for storing translation files.
+ */
+class TranslationsStream extends LocalStream {
+
+  /**
+   * Implements Drupal\Core\StreamWrapper\LocalStream::getDirectoryPath()
+   */
+  function getDirectoryPath() {
+    return variable_get('locale_translate_file_directory',
+      conf_path() . '/files/translations');
+  }
+
+  /**
+   * Implements Drupal\Core\StreamWrapper\StreamWrapperInterface::getExternalUrl().
+   * @throws \LogicException PO files URL should not be public.
+   */
+  function getExternalUrl() {
+    throw new \LogicException('PO files URL should not be public.');
+  }
+}
diff --git a/core/modules/locale/locale.bulk.inc b/core/modules/locale/locale.bulk.inc
index beace96..3ee77a4 100644
--- a/core/modules/locale/locale.bulk.inc
+++ b/core/modules/locale/locale.bulk.inc
@@ -94,7 +94,8 @@ function locale_translate_import_form_submit($form, &$form_state) {
   $validators = array('file_validate_extensions' => array('po'));
 
   // Ensure we have the file uploaded.
-  if ($file = file_save_upload('file', $validators)) {
+  $destination = variable_get('locale_translate_file_directory', '');
+  if ($file = file_save_upload('file', $validators, 'translations://')) {
 
     // Add language, if not yet supported.
     $language = language_load($form_state['values']['langcode']);
@@ -112,6 +113,7 @@ function locale_translate_import_form_submit($form, &$form_state) {
       'overwrite_options' => $form_state['values']['overwrite_options'],
       'customized' => $form_state['values']['customized'] ? LOCALE_CUSTOMIZED : LOCALE_NOT_CUSTOMIZED,
     );
+
     $batch = locale_translate_batch_build(array($file->uri => $file), $options);
     batch_set($batch);
   }