diff --git a/core/tests/Drupal/Tests/Component/Diff/Engine/DiffEngineTest.php b/core/tests/Drupal/Tests/Component/Diff/Engine/DiffEngineTest.php
index 3558aad..a1c001b 100644
--- a/core/tests/Drupal/Tests/Component/Diff/Engine/DiffEngineTest.php
+++ b/core/tests/Drupal/Tests/Component/Diff/Engine/DiffEngineTest.php
@@ -2,10 +2,10 @@
 
 /**
  * @file
- * Contains \Drupal\Tests\Component\Diff\DiffTest.
+ * Contains \Drupal\Tests\Component\Diff\Engine\DiffEngineTest.
  */
 
-namespace Drupal\Tests\Component\Engine;
+namespace Drupal\Tests\Component\Diff\Engine;
 
 use Drupal\Component\Diff\Engine\DiffEngine;