diff --git a/core/includes/install.inc b/core/includes/install.inc
index e6598f2..94f64bf 100644
--- a/core/includes/install.inc
+++ b/core/includes/install.inc
@@ -486,17 +486,12 @@ function drupal_install_config_directories() {
 
   // Add a randomized config directory name to settings.php, unless it was
   // manually defined in the existing already.
-  $settings = [];
-  $config_directories_hash = Crypt::randomBytesBase64(55);
   if (empty($config_directories[CONFIG_SYNC_DIRECTORY])) {
-    $config_directories[CONFIG_SYNC_DIRECTORY] = \Drupal::service('site.path') . '/files/config_' . $config_directories_hash . '/sync';
+    $config_directories[CONFIG_SYNC_DIRECTORY] = \Drupal::service('site.path') . '/files/config_' . Crypt::randomBytesBase64(55) . '/sync';
     $settings['config_directories'][CONFIG_SYNC_DIRECTORY] = (object) [
       'value' => $config_directories[CONFIG_SYNC_DIRECTORY],
       'required' => TRUE,
     ];
-  }
-
-  if (!empty($settings)) {
     // Rewrite settings.php, which also sets the value as global variable.
     drupal_rewrite_settings($settings);
   }