diff -u b/core/lib/Drupal/Core/Config/ConfigObject.php b/core/lib/Drupal/Core/Config/ConfigObject.php
--- b/core/lib/Drupal/Core/Config/ConfigObject.php
+++ b/core/lib/Drupal/Core/Config/ConfigObject.php
@@ -26,19 +26,19 @@
    *
    * @var Drupal\Core\Config\StorageManager
    */
-  protected $StorageManager;
+  protected $storageManager;
 
   /**
    * Constructs a configuration object.
    *
    * @param string $name
    *   The name of the configuration object.
-   * @param Drupal\Core\Config\StorageManager $StorageManager
+   * @param Drupal\Core\Config\StorageManager $storageManager
    *   The wrapping configuration manager object.
    */
-  public function __construct($name, StorageManager $StorageManager) {
+  public function __construct($name, StorageManager $storageManager) {
     $this->setName($name);
-    $this->StorageManager = $StorageManager;
+    $this->storageManager = $storageManager;
   }
 
   /**
@@ -205,7 +205,7 @@
    * Loads configuration data into this object.
    */
   public function load() {
-    $data = $this->StorageManager->selectStorage('read', $this->name)->read($this->name);
+    $data = $this->storageManager->selectStorage('read', $this->name)->read($this->name);
     $this->setData($data !== FALSE ? $data : array());
     return $this;
   }
@@ -214,7 +214,7 @@
    * Saves the configuration object.
    */
   public function save() {
-    $this->StorageManager->selectStorage('write', $this->name)->write($this->name, $this->data);
+    $this->storageManager->selectStorage('write', $this->name)->write($this->name, $this->data);
     return $this;
   }
 
@@ -223,7 +223,7 @@
    */
   public function delete() {
     $this->data = array();
-    $this->StorageManager->selectStorage('write', $this->name)->delete($this->name);
+    $this->storageManager->selectStorage('write', $this->name)->delete($this->name);
     return $this;
   }
 }