diff --git a/core/lib/Drupal/Core/DependencyInjection/UpdateDependenciesTrait.php b/core/lib/Drupal/Core/DependencyInjection/UpdateDependenciesTrait.php
index 2dabbc0..f37807a 100644
--- a/core/lib/Drupal/Core/DependencyInjection/UpdateDependenciesTrait.php
+++ b/core/lib/Drupal/Core/DependencyInjection/UpdateDependenciesTrait.php
@@ -10,11 +10,15 @@
 
 /**
  * Provides a trait which automatically updates dependencies from the container.
+ *
+ * Classes which trigger a container rebuild should point to the instances of
+ * the services with the new container. Calling the ::updateDependencies()
+ * method takes care of that.
  */
 trait UpdateDependenciesTrait {
 
   /**
-   * Updates all external dependencies and refetch it from the container.
+   * Updates all external dependencies and refetch them from the container.
    *
    * @param \Symfony\Component\DependencyInjection\ContainerInterface $container
    *   The container.
diff --git a/core/lib/Drupal/Core/Extension/ModuleInstaller.php b/core/lib/Drupal/Core/Extension/ModuleInstaller.php
index 91444df..ed763fa 100644
--- a/core/lib/Drupal/Core/Extension/ModuleInstaller.php
+++ b/core/lib/Drupal/Core/Extension/ModuleInstaller.php
@@ -13,7 +13,7 @@
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\Config\ConfigInstallerInterface;
 use Drupal\Core\Config\ConfigManagerInterface;
-use Drupal\Core\DependencyInjection\DependencyReinjectionTrait;
+use Drupal\Core\DependencyInjection\UpdateDependenciesTrait;
 use Drupal\Core\DrupalKernelInterface;
 use Drupal\Component\Utility\String;
 use Drupal\Core\Entity\EntityManagerInterface;
@@ -31,7 +31,7 @@
  */
 class ModuleInstaller implements ModuleInstallerInterface {
 
-  use DependencyReinjectionTrait;
+  use UpdateDependenciesTrait;
 
   /**
    * The module handler.