diff --git a/README.rst b/README.rst
index 7ce3fd4..9c1887f 100644
--- a/README.rst
+++ b/README.rst
@@ -72,6 +72,14 @@ your settings file:
         },
     ]
 
+Form template coverage only works when you use the
+:code:`django.forms.renderers.TemplatesSetting` renderer, in addition to the
+setting above:
+
+.. code-block:: python
+
+    FORM_RENDERER = 'django.forms.renderes.TemplatesSetting'
+
 
 Configuration
 ~~~~~~~~~~~~~