diff --git a/README.md b/README.md
index 2dabfc71..c298bca6 100644
--- a/README.md
+++ b/README.md
@@ -108,6 +108,15 @@ json.array! @people, :id, :name
 # => [ { "id": 1, "name": "David" }, { "id": 2, "name": "Jamie" } ]
 ```
 
+To make a plain array without keys, construct and pass in a standard Ruby array.
+
+``` ruby
+my_array = %w(David Jamie)
+
+json.people my_array
+
+# => "people": [ "David", "Jamie" ]
+
 You don't always have or need a collection when building an array.
 
 ```ruby