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 }     end   end

Am I missing something?