diff --git a/core/lib/Drupal/Core/CoreBundle.php b/core/lib/Drupal/Core/CoreBundle.php
index cac5d94..ea7f891 100644
--- a/core/lib/Drupal/Core/CoreBundle.php
+++ b/core/lib/Drupal/Core/CoreBundle.php
@@ -166,7 +166,8 @@ public function build(ContainerBuilder $container) {
       ->addArgument('slave');
     $container->register('typed_data', 'Drupal\Core\TypedData\TypedDataManager')
       ->addMethodCall('setValidationConstraintManager', array(new Reference('validation.constraint')));
-    $container->register('validation.constraint', 'Drupal\Core\Validation\ConstraintManager');
+    $container->register('validation.constraint', 'Drupal\Core\Validation\ConstraintManager')
+      ->addArgument('%container.namespaces%');
 
     // Add the user's storage for temporary, non-cache data.
     $container->register('lock', 'Drupal\Core\Lock\DatabaseLockBackend');