diff --git a/website/content/docs/job-specification/hcl2/functions/collection/index-fn.mdx b/website/content/docs/job-specification/hcl2/functions/collection/index-fn.mdx
index f58c7b8f3..7ab775319 100644
--- a/website/content/docs/job-specification/hcl2/functions/collection/index-fn.mdx
+++ b/website/content/docs/job-specification/hcl2/functions/collection/index-fn.mdx
@@ -1,25 +1,30 @@
 ---
 layout: docs
 page_title: index - Functions - Configuration Language
-description: The index function finds the element index for a given value in a list.
+description: |-
+  The index function returns an element from the given list or map
+  using the given index or key.
 ---
 
 # `index` Function
 
-`index` finds the element index for a given value in a list.
+`index` finds the element at the index when handling lists, or the element at
+the key when handling maps.
 
 ```hcl
 index(list, value)
 ```
 
-The returned index is zero-based. This function produces an error if the given
-value is not present in the list.
-
 ## Examples
 
 ```shell-session
-> index(["a", "b", "c"], "b")
-1
+> index(["a", "b", "c"], 1)
+"b"
+```
+
+```shell-session
+> index({"a"=1, "c"=2, "d"=3}, "c")
+2
 ```
 
 ## Related Functions