Polymorphic association and has_one retrieval issues

class Address < ActiveRecord::Base   belongs_to :addressable, :polymorphic => true end

class Client < ActiveRecord::Base   has_one :address, :as => :addressable end

Now I'am able to create a correct entry in the db for address with addressable_id = 1#client_id addreassable_type = 'Client'

but when I retrieve client = Client.find(1) --> return client instance with id =1 address = client.address -> address is not nil

BUT address.attributes == nil

Somehow I can't retrieve the address back using association client.address even though I could create it. I must be missing something simple. Would appreciate any tips.