diff --git a/core/tests/Drupal/Tests/Core/Render/Element/RenderElementTest.php b/core/tests/Drupal/Tests/Core/Render/Element/RenderElementTest.php
index 95bc711954..86046bee0a 100644
--- a/core/tests/Drupal/Tests/Core/Render/Element/RenderElementTest.php
+++ b/core/tests/Drupal/Tests/Core/Render/Element/RenderElementTest.php
@@ -46,7 +46,7 @@ protected function setUp() {
    * @covers ::preRenderAjaxForm
    * @dataProvider providerTestPreRenderAjaxForm
    *
-   * @legacy
+   * @group legacy
    */
   public function testPreRenderAjaxForm($element, $expected, $url) {
     $request = Request::create('/test');