diff --git a/core/tests/Drupal/KernelTests/KernelTestBase.php b/core/tests/Drupal/KernelTests/KernelTestBase.php
index 3e54b3f085..c86aa5e938 100644
--- a/core/tests/Drupal/KernelTests/KernelTestBase.php
+++ b/core/tests/Drupal/KernelTests/KernelTestBase.php
@@ -249,7 +249,7 @@ protected function setUp() {
    * Should not be called by tests. Only visible for DrupalKernel integration
    * tests.
    *
-   * @see \Drupal\system\Tests\DrupalKernel\DrupalKernelTest
+   * @see \Drupal\KernelTests\Core\DrupalKernel\DrupalKernelTest
    * @internal
    */
   protected function bootEnvironment() {
@@ -263,7 +263,6 @@ protected function bootEnvironment() {
     // Set up virtual filesystem.
     Database::addConnectionInfo('default', 'test-runner', $this->getDatabaseConnectionInfo()['default']);
     $test_db = new TestDatabase();
-    $this->siteDirectory = $test_db->getTestSitePath();
 
     // Ensure that all code that relies on drupal_valid_test_ua() can still be
     // safely executed. This primarily affects the (test) site directory
@@ -273,7 +272,6 @@ protected function bootEnvironment() {
 
     $settings = [
       'hash_salt' => get_class($this),
-      'file_public_path' => $this->siteDirectory . '/files',
       // Disable Twig template caching/dumping.
       'twig_cache' => FALSE,
       // @see \Drupal\KernelTests\KernelTestBase::register()