diff --git a/core/core.services.yml b/core/core.services.yml
index b5de3fd..d2fa3cb 100644
--- a/core/core.services.yml
+++ b/core/core.services.yml
@@ -291,7 +291,7 @@ services:
     arguments: ['@app.root', '%container.modules%', '@cache.bootstrap']
   module_installer:
     class: Drupal\Core\Extension\ModuleInstaller
-    arguments: ['@module_handler', '@kernel']
+    arguments: ['@app.root', '@module_handler', '@kernel']
   theme_handler:
     class: Drupal\Core\Extension\ThemeHandler
     arguments: ['@app.root', '@config.factory', '@module_handler', '@state', '@info_parser', '@logger.channel.default', '@asset.css.collection_optimizer', '@config.installer', '@config.manager', '@router.builder_indicator']
diff --git a/core/lib/Drupal/Core/Extension/ModuleInstaller.php b/core/lib/Drupal/Core/Extension/ModuleInstaller.php
index d9d39c8..1fda154 100644
--- a/core/lib/Drupal/Core/Extension/ModuleInstaller.php
+++ b/core/lib/Drupal/Core/Extension/ModuleInstaller.php
@@ -34,8 +34,17 @@ class ModuleInstaller implements ModuleInstallerInterface {
   protected $kernel;
 
   /**
+   * The app root.
+   *
+   * @var string
+   */
+  protected $root;
+
+  /**
    * Constructs a new ModuleInstaller instance.
    *
+   * @param string $root
+   *   The app root.
    * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
    *   The module handler.
    * @param \Drupal\Core\DrupalKernelInterface $kernel
@@ -44,7 +53,8 @@ class ModuleInstaller implements ModuleInstallerInterface {
    * @see \Drupal\Core\DrupalKernel
    * @see \Drupal\Core\CoreServiceProvider
    */
-  public function __construct(ModuleHandlerInterface $module_handler, DrupalKernelInterface $kernel) {
+  public function __construct($root, ModuleHandlerInterface $module_handler, DrupalKernelInterface $kernel) {
+    $this->root;
     $this->moduleHandler = $module_handler;
     $this->kernel = $kernel;
   }