diff --git a/core/modules/help/src/Tests/HelpEmptyPageTest.php b/core/modules/help/src/Tests/HelpEmptyPageTest.php
index 6a4404ea7f9..5fd133961a6 100644
--- a/core/modules/help/src/Tests/HelpEmptyPageTest.php
+++ b/core/modules/help/src/Tests/HelpEmptyPageTest.php
@@ -9,7 +9,7 @@ namespace Drupal\help\Tests;
 
 use Drupal\Core\DependencyInjection\ContainerBuilder;
 use Drupal\Core\Routing\RouteMatch;
-use Drupal\help_test\SuperNovaGenerator;
+use Drupal\help_test\SupernovaGenerator;
 use Drupal\simpletest\KernelTestBase;
 
 /**
diff --git a/core/modules/help/tests/modules/help_test/src/SuperNovaGenerator.php b/core/modules/help/tests/modules/help_test/src/SupernovaGenerator.php
similarity index 92%
rename from core/modules/help/tests/modules/help_test/src/SuperNovaGenerator.php
rename to core/modules/help/tests/modules/help_test/src/SupernovaGenerator.php
index 2103efc232f..3b6adec2346 100644
--- a/core/modules/help/tests/modules/help_test/src/SuperNovaGenerator.php
+++ b/core/modules/help/tests/modules/help_test/src/SupernovaGenerator.php
@@ -2,7 +2,7 @@
 
 /**
  * @file
- * Contains \Drupal\help_test\SuperNovaGenerator.
+ * Contains \Drupal\help_test\SupernovaGenerator.
  */
 
 namespace Drupal\help_test;
@@ -13,7 +13,7 @@ use Symfony\Component\Routing\RequestContext;
 /**
  * Implements a URL generator which always thrown an exception.
  */
-class SuperNovaGenerator implements UrlGeneratorInterface {
+class SupernovaGenerator implements UrlGeneratorInterface {
 
   /**
    * {@inheritdoc}