diff --git a/core/modules/views_ui/lib/Drupal/views_ui/Tests/DisplayTestTrait.php b/core/modules/views_ui/lib/Drupal/views_ui/Tests/DisplayTestTrait.php
index 29a6d49..25bd440 100644
--- a/core/modules/views_ui/lib/Drupal/views_ui/Tests/DisplayTestTrait.php
+++ b/core/modules/views_ui/lib/Drupal/views_ui/Tests/DisplayTestTrait.php
@@ -6,6 +6,9 @@
  */
 namespace Drupal\views_ui\Tests;
 
+/**
+ * Reusable methods and properties for Views display tests.
+ */
 trait DisplayTestTrait {
 
   /**