diff --git a/core/lib/Drupal/Core/Language/LanguageManager.php b/core/lib/Drupal/Core/Language/LanguageManager.php
index 86b43f5..3bdabc2 100644
--- a/core/lib/Drupal/Core/Language/LanguageManager.php
+++ b/core/lib/Drupal/Core/Language/LanguageManager.php
@@ -13,7 +13,7 @@
 /**
  * Class responsible for initializing each language type.
  */
-class LanguageManager {
+class LanguageManager implements \Serializable {
 
   /**
    * A request object.
@@ -302,4 +302,24 @@ public static function getStandardLanguageList() {
     );
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function serialize() {
+    $manager = clone $this;
+    // Clear the request file bag..
+    $manager->request->files->replace(array());
+    return serialize(get_object_vars($manager));
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function unserialize($serialized) {
+    $data = unserialize($serialized);
+    foreach ($data as $key => $value) {
+      $this->{$key} = $value;
+    }
+  }
+
 }