diff --git a/core/lib/Drupal/Core/Composer/Composer.php b/core/lib/Drupal/Core/Composer/Composer.php
index 0d5b6aa..993815e 100644
--- a/core/lib/Drupal/Core/Composer/Composer.php
+++ b/core/lib/Drupal/Core/Composer/Composer.php
@@ -142,7 +142,8 @@ public static function ensureHtaccess(Event $event) {
   /**
    * Remove possibly problematic test files from vendored projects.
    *
-   * @param \Composer\Script\Event $event
+   * @param \Composer\Installer\PackageEvent $event
+   *   A PackageEvent object from Composer.
    */
   public static function vendorTestCodeCleanup(PackageEvent $event) {
     $vendor_dir = $event->getComposer()->getConfig()->get('vendor-dir');