diff --git a/core/lib/Drupal/Core/Config/ConfigImporter.php b/core/lib/Drupal/Core/Config/ConfigImporter.php
index 837abc0..bbada79 100644
--- a/core/lib/Drupal/Core/Config/ConfigImporter.php
+++ b/core/lib/Drupal/Core/Config/ConfigImporter.php
@@ -551,7 +551,7 @@ protected function processExtensions(array &$context) {
     $operation = $this->getNextExtensionOperation();
     if (!empty($operation)) {
       $this->processExtension($operation['type'], $operation['op'], $operation['name']);
-      $context['message'] = t('Synchronizing extensions: @op @name.', array('@op' => $operation['op'], '@name' => $operation['name']));
+      $context['message'] = $this->t('Synchronizing extensions: @op @name.', array('@op' => $operation['op'], '@name' => $operation['name']));
       $processed_count = count($this->processedExtensions['module']['install']) + count($this->processedExtensions['module']['uninstall']);
       $processed_count += count($this->processedExtensions['theme']['uninstall']) + count($this->processedExtensions['theme']['install']);
       $context['finished'] = $processed_count / $this->totalExtensionsToProcess;
@@ -647,7 +647,7 @@ protected function finish(array &$context) {
     // The import is now complete.
     $this->lock->release(static::LOCK_NAME);
     $this->reset();
-    $context['message'] = t('Finalizing configuration synchronization.');
+    $context['message'] = $this->t('Finalizing configuration synchronization.');
     $context['finished'] = 1;
   }
 
diff --git a/core/lib/Drupal/Core/Config/Entity/DraggableListBuilder.php b/core/lib/Drupal/Core/Config/Entity/DraggableListBuilder.php
index e1eb60e..efc33b6 100644
--- a/core/lib/Drupal/Core/Config/Entity/DraggableListBuilder.php
+++ b/core/lib/Drupal/Core/Config/Entity/DraggableListBuilder.php
@@ -64,7 +64,7 @@ public function __construct(EntityTypeInterface $entity_type, EntityStorageInter
   public function buildHeader() {
     $header = array();
     if (!empty($this->weightKey)) {
-      $header['weight'] = t('Weight');
+      $header['weight'] = $this->t('Weight');
     }
     return $header + parent::buildHeader();
   }
@@ -81,7 +81,7 @@ public function buildRow(EntityInterface $entity) {
       // Add weight column.
       $row['weight'] = array(
         '#type' => 'weight',
-        '#title' => t('Weight for @title', array('@title' => $entity->label())),
+        '#title' => $this->t('Weight for @title', array('@title' => $entity->label())),
         '#title_display' => 'invisible',
         '#default_value' => $entity->get($this->weightKey),
         '#attributes' => array('class' => array('weight')),
@@ -107,7 +107,7 @@ public function buildForm(array $form, FormStateInterface $form_state) {
     $form[$this->entitiesKey] = array(
       '#type' => 'table',
       '#header' => $this->buildHeader(),
-      '#empty' => t('There is no @label yet.', array('@label' => $this->entityType->getLabel())),
+      '#empty' => $this->t('There is no @label yet.', array('@label' => $this->entityType->getLabel())),
       '#tabledrag' => array(
         array(
           'action' => 'order',
@@ -140,7 +140,7 @@ public function buildForm(array $form, FormStateInterface $form_state) {
     $form['actions']['#type'] = 'actions';
     $form['actions']['submit'] = array(
       '#type' => 'submit',
-      '#value' => t('Save order'),
+      '#value' => $this->t('Save order'),
       '#button_type' => 'primary',
     );