diff --git a/core/modules/aggregator/lib/Drupal/aggregator/CategoryStorageController.php b/core/modules/aggregator/lib/Drupal/aggregator/CategoryStorageController.php
index 7a39a98..0922531 100644
--- a/core/modules/aggregator/lib/Drupal/aggregator/CategoryStorageController.php
+++ b/core/modules/aggregator/lib/Drupal/aggregator/CategoryStorageController.php
@@ -108,7 +108,7 @@ public function loadByItem($item_id) {
   /**
    * {@inheritdoc}
    */
-  public function updateCategoriesForItem($iid, array $cids) {
+  public function updateItem($iid, array $cids) {
     // Remove all existing category items.
     $this->database->delete('aggregator_category_item')
       ->condition('iid', $iid)
diff --git a/core/modules/aggregator/lib/Drupal/aggregator/CategoryStorageControllerInterface.php b/core/modules/aggregator/lib/Drupal/aggregator/CategoryStorageControllerInterface.php
index cd52660..0494415 100644
--- a/core/modules/aggregator/lib/Drupal/aggregator/CategoryStorageControllerInterface.php
+++ b/core/modules/aggregator/lib/Drupal/aggregator/CategoryStorageControllerInterface.php
@@ -85,7 +85,7 @@ public function loadByItem($item_id);
    * @param array $cids
    *   The category IDs.
    */
-  public function updateCategoriesForItem($iid, array $cids);
+  public function updateItem($iid, array $cids);
 
 }
 
diff --git a/core/modules/aggregator/lib/Drupal/aggregator/Form/AggregatorCategorizeFormBase.php b/core/modules/aggregator/lib/Drupal/aggregator/Form/AggregatorCategorizeFormBase.php
index 3471add..9fe81cd 100644
--- a/core/modules/aggregator/lib/Drupal/aggregator/Form/AggregatorCategorizeFormBase.php
+++ b/core/modules/aggregator/lib/Drupal/aggregator/Form/AggregatorCategorizeFormBase.php
@@ -141,7 +141,7 @@ public function buildForm(array $form, array &$form_state, array $items = NULL)
   public function submitForm(array &$form, array &$form_state) {
     if (!empty($form_state['values']['categories'])) {
       foreach ($form_state['values']['categories'] as $iid => $cids) {
-        $this->categoryStorage->updateCategoriesForItem($iid, $cids);
+        $this->categoryStorage->updateItem($iid, $cids);
       }
     }
     drupal_set_message($this->t('The categories have been saved.'));