diff --git a/core/modules/user/tests/src/Functional/RestRegisterUserTest.php b/core/modules/user/src/Tests/RestRegisterUserTest.php
similarity index 99%
rename from core/modules/user/tests/src/Functional/RestRegisterUserTest.php
rename to core/modules/user/src/Tests/RestRegisterUserTest.php
index 576bd3e95e..62e6bbc687 100644
--- a/core/modules/user/tests/src/Functional/RestRegisterUserTest.php
+++ b/core/modules/user/src/Tests/RestRegisterUserTest.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Drupal\Tests\user\Functional;
+namespace Drupal\user\Tests;
 
 use Drupal\rest\Tests\RESTTestBase;
 use Drupal\user\Entity\Role;