diff --git a/website/source/docs/configuration/interpolation.html.md b/website/source/docs/configuration/interpolation.html.md
index d2dcb6a0d..dcec02448 100644
--- a/website/source/docs/configuration/interpolation.html.md
+++ b/website/source/docs/configuration/interpolation.html.md
@@ -27,7 +27,12 @@ that is a mapping.
 **To reference attributes of other resources**, the syntax is
 `TYPE.NAME.ATTRIBUTE`. For example, `${aws_instance.web.id}`
 will interpolate the ID attribute from the "aws\_instance"
-resource named "web".
+resource named "web". If the resource has a `count` attribute set,
+you can access individual attributes with a zero-based index, such
+as `${aws_instance.web.0.id}`. You can also use the splat syntax
+to get a list of all the attributes: `${aws_instance.web.*.id}`.
+This is documented in more detail in the
+[resource configuration page](/docs/configuration/resources.html).
 
 **To reference outputs from a module**, the syntax is
 `MODULE.NAME.OUTPUT`. For example `${module.foo.bar}` will