diff --git a/core/lib/Drupal/Core/Cache/PhpBackend.php b/core/lib/Drupal/Core/Cache/PhpBackend.php
index 2aef934..71349c0 100644
--- a/core/lib/Drupal/Core/Cache/PhpBackend.php
+++ b/core/lib/Drupal/Core/Cache/PhpBackend.php
@@ -31,13 +31,13 @@ class PhpBackend implements CacheBackendInterface {
   protected $cache = array();
 
   /**
-   * Constructs a MemoryBackend object.
+   * Constructs a PhpBackend object.
    *
    * @param string $bin
    *   The cache bin for which the object is created.
    */
   public function __construct($bin) {
-    $this->bin = $bin;
+    $this->bin = 'cache_' . $bin;
   }
 
   /**
@@ -270,13 +270,7 @@ protected function writeItem($cid, \stdClass $item) {
    */
   protected function storage() {
     if (!isset($this->storage)) {
-      if ($this->bin != 'cache') {
-        $store = 'cache_' . $this->bin;
-      }
-      else {
-        $store = 'cache';
-      }
-      $this->storage = PhpStorageFactory::get($store);
+      $this->storage = PhpStorageFactory::get($this->bin);
     }
     return $this->storage;
   }