diff --git a/core/core.libraries.yml b/core/core.libraries.yml
index 76dca59c6d..86879cfdee 100644
--- a/core/core.libraries.yml
+++ b/core/core.libraries.yml
@@ -92,7 +92,6 @@ drupal.ajax:
   dependencies:
     - core/jquery
     - core/drupal
-    - core/drupal.announce
     - core/drupalSettings
     - core/drupal.progress
     - core/jquery.once
diff --git a/core/lib/Drupal/Core/Ajax/AnnounceCommand.php b/core/lib/Drupal/Core/Ajax/AnnounceCommand.php
index ba92788ea5..3c612f77e9 100644
--- a/core/lib/Drupal/Core/Ajax/AnnounceCommand.php
+++ b/core/lib/Drupal/Core/Ajax/AnnounceCommand.php
@@ -2,15 +2,18 @@
 
 namespace Drupal\Core\Ajax;
 
+use Drupal\Core\Asset\AttachedAssets;
+
 /**
  * AJAX command for a javascript Drupal.announce() call.
  *
  * @ingroup ajax
  */
-class AnnounceCommand implements CommandInterface {
+class AnnounceCommand implements CommandInterface, CommandWithAttachedAssetsInterface {
+
 
   /**
-   * The text for the message.
+   * The text to be announced.
    *
    * @var string
    */
@@ -30,11 +33,19 @@ public function __construct($text) {
    * {@inheritdoc}
    */
   public function render() {
-
     return [
       'command' => 'announce',
       'text' => $this->text,
     ];
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function getAttachedAssets() {
+    $assets = new AttachedAssets();
+    $assets->setLibraries(['core/drupal.announce']);
+    return $assets;
+  }
+
 }
diff --git a/core/tests/Drupal/Tests/Core/Ajax/AjaxCommandsTest.php b/core/tests/Drupal/Tests/Core/Ajax/AjaxCommandsTest.php
index 2ca7382109..b528659cde 100644
--- a/core/tests/Drupal/Tests/Core/Ajax/AjaxCommandsTest.php
+++ b/core/tests/Drupal/Tests/Core/Ajax/AjaxCommandsTest.php
@@ -3,6 +3,7 @@
 namespace Drupal\Tests\Core\Ajax;
 
 use Drupal\Core\Ajax\AnnounceCommand;
+use Drupal\Core\Asset\AttachedAssets;
 use Drupal\Tests\UnitTestCase;
 use Drupal\Core\Ajax\AddCssCommand;
 use Drupal\Core\Ajax\AfterCommand;
@@ -84,12 +85,16 @@ public function testAlertCommand() {
    */
   public function testAnnounceCommand() {
     $command = new AnnounceCommand('Things are going to change!');
+    $expected_assets = new AttachedAssets();
+    $expected_assets->setLibraries(['core/drupal.announce']);
+    $this->assertEquals($expected_assets, $command->getAttachedAssets());
+
     $expected = [
       'command' => 'announce',
       'text' => 'Things are going to change!',
     ];
 
-    $this->assertEquals($expected, $command->render());
+    $this->assertSame($expected, $command->render());
   }
 
   /**