diff --git a/docs/settings.rst b/docs/settings.rst
index e58243bc..a201b92b 100644
--- a/docs/settings.rst
+++ b/docs/settings.rst
@@ -41,6 +41,8 @@ Setting name              what it does ?
                           `feeds/all.atom.xml`
 `FEED_RSS`                relative url to output the rss feed. Default is
                           None (no rss)
+`JINJA_EXTENSIONS`        A list of any Jinja2 extensions you want to use.
+                          Default is no extensions (the empty list)
 `KEEP_OUTPUT_DIRECTORY`   Keep the output directory and just update all the generated files. 
                           Default is to delete the output directory.   
 `MARKUP`                  A list of available markup languages you want to use.