diff --git a/core/modules/aggregator/lib/Drupal/aggregator/Plugin/Derivative/AggregatorCategoryBlock.php b/core/modules/aggregator/lib/Drupal/aggregator/Plugin/Derivative/AggregatorCategoryBlock.php
index 05de0f1..fedabd4 100644
--- a/core/modules/aggregator/lib/Drupal/aggregator/Plugin/Derivative/AggregatorCategoryBlock.php
+++ b/core/modules/aggregator/lib/Drupal/aggregator/Plugin/Derivative/AggregatorCategoryBlock.php
@@ -9,6 +9,7 @@
 
 use Drupal\Core\Plugin\Discovery\ContainerDerivativeInterface;
 use Drupal\Core\Database\Connection;
+use Drupal\Core\StringTranslation\Translator\TranslatorInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
@@ -33,16 +34,26 @@ class AggregatorCategoryBlock implements ContainerDerivativeInterface {
   protected $connection;
 
   /**
+   * The translation manager.
+   *
+   * @var \Drupal\Core\StringTranslation\Translator\TranslatorInterface
+   */
+  protected $translationManager;
+
+  /**
    * Constructs a AggregatorCategoryBlock object.
    *
    * @param string $base_plugin_id
    *   The base plugin ID.
    * @param \Drupal\Core\Database\Connection $connection
    *   The database connection.
+   * @param \Drupal\Core\StringTranslation\Translator\TranslatorInterface $translation_manager
+   *   The translation manager.
    */
-  public function __construct($base_plugin_id, Connection $connection) {
+  public function __construct($base_plugin_id, Connection $connection, TranslatorInterface $translation_manager) {
     $this->basePluginId = $base_plugin_id;
     $this->connection = $connection;
+    $this->translationManager = $translation_manager;
   }
 
   /**
@@ -51,7 +62,8 @@ public function __construct($base_plugin_id, Connection $connection) {
   public static function create(ContainerInterface $container, $base_plugin_id) {
     return new static(
       $base_plugin_id,
-      $container->get('database')
+      $container->get('database'),
+      $container->get('string_translation')
     );
   }
 
@@ -65,7 +77,7 @@ public function getDerivativeDefinition($derivative_id, array $base_plugin_defin
     $result = $this->connection->query('SELECT cid, title FROM {aggregator_category} ORDER BY title WHERE cid = :cid', array(':cid' => $derivative_id))->fetchObject();
     $this->derivatives[$derivative_id] = $base_plugin_definition;
     $this->derivatives[$derivative_id]['delta'] = $result->cid;
-    $this->derivatives[$derivative_id]['admin_label'] = t('@title category latest items', array('@title' => $result->title));
+    $this->derivatives[$derivative_id]['admin_label'] = $this->translationManager->translate('@title category latest items', array('@title' => $result->title));
     return $this->derivatives[$derivative_id];
   }
 
@@ -78,7 +90,7 @@ public function getDerivativeDefinitions(array $base_plugin_definition) {
     foreach ($result as $category) {
       $this->derivatives[$category->cid] = $base_plugin_definition;
       $this->derivatives[$category->cid]['delta'] = $category->cid;
-      $this->derivatives[$category->cid]['admin_label'] = t('@title category latest items', array('@title' => $category->title));
+      $this->derivatives[$category->cid]['admin_label'] = $this->translationManager->translate('@title category latest items', array('@title' => $category->title));
     }
     return $this->derivatives;
   }