diff --git a/docs/topics/downloader-middleware.rst b/docs/topics/downloader-middleware.rst
index 3b9a5335a..912671d19 100644
--- a/docs/topics/downloader-middleware.rst
+++ b/docs/topics/downloader-middleware.rst
@@ -318,10 +318,11 @@ HttpCacheMiddleware
     This middleware provides low-level cache to all HTTP requests and responses.
     It has to be combined with a cache storage backend as well as a cache policy.
 
-    Scrapy ships with two HTTP cache storage backends:
+    Scrapy ships with three HTTP cache storage backends:
 
         * :ref:`httpcache-storage-fs`
         * :ref:`httpcache-storage-dbm`
+        * :ref:`httpcache-storage-leveldb`
 
     You can change the HTTP cache storage backend with the :setting:`HTTPCACHE_STORAGE`
     setting. Or you can also implement your own storage backend.