diff --git a/site/_docs/datafiles.md b/site/_docs/datafiles.md
index 6fea3f3d..5c565db8 100644
--- a/site/_docs/datafiles.md
+++ b/site/_docs/datafiles.md
@@ -23,8 +23,8 @@ Plugins/themes can also leverage Data Files to set configuration variables.
 
 As explained on the [directory structure](../structure/) page, the `_data`
 folder is where you can store additional data for Jekyll to use when generating
-your site. These files must be YAML files (using either the `.yml`, `.yaml` or `.json`
-extension) and they will be accessible via `site.data`.
+your site. These files must be YAML files (using either the `.yml`, `.yaml`, `.json`
+or `csv` extension) and they will be accessible via `site.data`.
 
 ## Example: List of members
 
@@ -44,6 +44,15 @@ In `_data/members.yml`:
   github: liufengyun
 {% endhighlight %}
 
+Or `_data/members.csv`:
+
+{% highlight csv %}
+name,github
+Tom Preston-Werner,mojombo
+Parker Moore,parkr
+Liu Fengyun,liufengyun
+{% endhighlight %}
+
 This data can be accessed via `site.data.members` (notice that the filename
 determines the variable name).