diff --git a/core/phpcs.xml.dist b/core/phpcs.xml.dist
index 56abaf1edc7fa06547ed7e2beddb34b31a552011..2b080cef01c2a3dba05652d6a741d7b300e2a2ed 100644
--- a/core/phpcs.xml.dist
+++ b/core/phpcs.xml.dist
@@ -62,9 +62,6 @@
     <exclude name="Drupal.Commenting.DocComment.LongFullStop"/>
     <exclude name="Drupal.Commenting.DocComment.MissingShort"/>
   </rule>
-  <rule ref="Drupal.Commenting.DocComment">
-    <exclude-pattern>core/tests/*</exclude-pattern>
-  </rule>
   <rule ref="Drupal.Commenting.DocCommentAlignment"/>
   <rule ref="Drupal.Commenting.DocCommentLongArraySyntax"/>
   <rule ref="Drupal.Commenting.DocCommentStar"/>
diff --git a/core/tests/Drupal/Tests/Core/Render/RendererRecursionTest.php b/core/tests/Drupal/Tests/Core/Render/RendererRecursionTest.php
index 0cc2424b9749b845cefe3fd851d2684aa2fbf28c..bbf90f853b7200b6672c3aa551c3df6d5f992be8 100644
--- a/core/tests/Drupal/Tests/Core/Render/RendererRecursionTest.php
+++ b/core/tests/Drupal/Tests/Core/Render/RendererRecursionTest.php
@@ -92,9 +92,7 @@ public function testRenderRecursionWithNestedRender(): void {
   }
 
   /**
-   * ::renderInIsolation() may be called from anywhere.
-   *
-   * Including from inside of another ::renderRoot() call.
+   * Tests that renderRoot() can be called from anywhere including recursively.
    *
    * @covers ::renderRoot
    * @covers ::renderInIsolation