I'm trying to create a haskell implementation of json rpc, I try to define protocol using record like this: data Request = Request { version :: Integer , id :: Integer , method :: String , args :: [Value] } deriving (Typeable, Data, Show) data Response = Response { version :: Integer , id :: Integer , code :: Integer , method :: String , result :: Value } deriving (Typeable, Data, Show) so i can use json library to encode/decode it. But this code fails, because haskell will define access function automaticlly, and function names conflicts. My question is, is there a way i can define record without access function, so i can have same attribute name in multiple record. -- http://www.yi-programmer.com/blog/