diff --git a/lib/Doctrine/ORM/Cache.php b/lib/Doctrine/ORM/Cache.php
index fec65f1f3..3da7c05ef 100644
--- a/lib/Doctrine/ORM/Cache.php
+++ b/lib/Doctrine/ORM/Cache.php
@@ -54,13 +54,6 @@ interface Cache
      */
     const MODE_REFRESH = 4;
 
-    /**
-     * Construct
-     *
-     * @param \Doctrine\ORM\EntityManagerInterface $em
-     */
-    public function __construct(EntityManagerInterface $em);
-
     /**
      * @param string $className The entity class.
      *