To_json delivers incorrect format? Anyone else seeing this?

@notes.to_json outputs=> [
{attributes: {title: “My Shiny New Box”, individual_id: “1”, id: “1”,
note: “The first of many such things”}},
{attributes: {title: “A second box”, individual_id: “2”, id: “2”,
note: “This is the second in a series of notes describing a box”}}

The keys (e.g. title:) are not quoted. I see this on my local dev and
on the main server.

Feeding this string back through the JSON::parser.decode(jsonstring)
fails with an ‘unexpected token’ error.

Quoting the keys works fine.

An example json string from Wikipedia shows the keys quoted:

“firstName”: “John”,
“lastName”: “Smith”,
“address”: {
“streetAddress”: “21 2nd Street”,
“city”: “New York”,
“state”: “NY”,
“postalCode”: 10021
“phoneNumbers”: [
“212 732-1234”,
“646 123-4567”

The code in the controller is:

def index
@notes = Note.find(:all)
respond_to do |format|
format.html # index.rhtml
format.xml { render :xml => @notes.to_xml }
format.json { render :json => @notes.to_json }

Am I missing something?