diff --git a/sites/scrapy.org/README b/sites/scrapy.org/README
index 6299b8a2b..36216e8e6 100644
--- a/sites/scrapy.org/README
+++ b/sites/scrapy.org/README
@@ -2,3 +2,6 @@ Dependencies:
 
     * python docutils (python-docutils in debian)
       Needed for ReST markup
+
+    * Sphinx python package (easy_install Sphinx)
+      Needed for documentation