diff --git a/docs/cache.txt b/docs/cache.txt
index 12920b1225..d8d028b558 100644
--- a/docs/cache.txt
+++ b/docs/cache.txt
@@ -70,10 +70,13 @@ cache your entire site. Just add ``django.middleware.cache.CacheMiddleware``
 to your ``MIDDLEWARE_CLASSES`` setting, as in this example::
 
     MIDDLEWARE_CLASSES = (
-        "django.middleware.common.CommonMiddleware",
         "django.middleware.cache.CacheMiddleware",
+        "django.middleware.common.CommonMiddleware",
     )
 
+Make sure it's the first entry in ``MIDDLEWARE_CLASSES``. (The order of
+``MIDDLEWARE_CLASSES`` matters.)
+
 Then, add the following three required settings:
 
 * ``CACHE_MIDDLEWARE_SECONDS`` -- The number of seconds each page should be