diff --git a/dcr/Cache/Cache.php b/dcr/Cache/Cache.php
index 9bff6ad..2c06852 100644
--- a/dcr/Cache/Cache.php
+++ b/dcr/Cache/Cache.php
@@ -9,6 +9,7 @@
 class Cache
 {
     /**
+     * @var Cache
      */
     public static $cache;