diff --git a/core/tests/Drupal/Tests/Core/StackMiddleware/ServerTimingTest.php b/core/tests/Drupal/Tests/Core/StackMiddleware/ServerTimingTest.php
index 5ab3914e0f..c4cee1b49d 100644
--- a/core/tests/Drupal/Tests/Core/StackMiddleware/ServerTimingTest.php
+++ b/core/tests/Drupal/Tests/Core/StackMiddleware/ServerTimingTest.php
@@ -19,10 +19,9 @@
 class ServerTimingTest extends UnitTestCase {
 
   /**
-   * Tests Server-Timing header.
+   * @covers ::handle
    */
   public function testServerTiming() {
-
     ClockMock::register(__CLASS__);
     ClockMock::withClockMock($_SERVER['REQUEST_TIME_FLOAT'] + 0.123123);