diff --git a/Network/HTTP/Types/Header.hs b/Network/HTTP/Types/Header.hs
--- a/Network/HTTP/Types/Header.hs
+++ b/Network/HTTP/Types/Header.hs
@@ -1,4 +1,4 @@
-{-# LANGUAGE OverloadedStrings, FlexibleInstances, MultiParamTypeClasses, FunctionalDependencies #-}
+{-# LANGUAGE OverloadedStrings, FlexibleInstances, MultiParamTypeClasses, FunctionalDependencies, DeriveDataTypeable #-}
 module Network.HTTP.Types.Header
 (
   -- ** Types
@@ -43,6 +43,8 @@
 import qualified Data.ByteString                as B
 import qualified Data.CaseInsensitive           as CI
 import           Data.ByteString.Char8          () {-IsString-}
+import           Data.Typeable                  (Typeable)
+import           Data.Data                      (Data)
 
 -- | Header
 type Header = (HeaderName, B.ByteString)
@@ -85,6 +87,7 @@
   = ByteRangeFrom !Integer
   | ByteRangeFromTo !Integer !Integer
   | ByteRangeSuffix !Integer
+  deriving (Show, Eq, Ord, Typeable, Data)
 
 renderByteRangeBuilder :: ByteRange -> Blaze.Builder
 renderByteRangeBuilder (ByteRangeFrom from) = Blaze.fromShow from `mappend` Blaze.fromChar '-'
diff --git a/http-types.cabal b/http-types.cabal
--- a/http-types.cabal
+++ b/http-types.cabal
@@ -1,61 +1,28 @@
--- http-types.cabal auto-generated by cabal init. For additional
--- options, see
--- http://www.haskell.org/cabal/release/cabal-latest/doc/users-guide/authors.html#pkg-descr.
--- The name of the package.
 Name:                http-types
-
--- The package version. See the Haskell package versioning policy
--- (http://www.haskell.org/haskellwiki/Package_versioning_policy) for
--- standards guiding when and how versions should be incremented.
-Version:             0.8.3
-
--- A short (one-line) description of the package.
+Version:             0.8.4
 Synopsis:            Generic HTTP types for Haskell (for both client and server code).
-
--- A longer description of the package.
 Description:         Generic HTTP types for Haskell (for both client and server code).
-
--- URL for the project homepage or repository.
 Homepage:            https://github.com/aristidb/http-types
-
--- The license under which the package is released.
 License:             BSD3
-
--- The file containing the license text.
 License-file:        LICENSE
-
--- The package author(s).
 Author:              Aristid Breitkreuz, Michael Snoyman
-
--- An email address to which users can send suggestions, bug reports,
--- and patches.
 Maintainer:          aristidb@googlemail.com
-
--- A copyright notice.
 Copyright:           (C) 2011 Aristid Breitkreuz
-
 Category:            Network, Web
-
 Build-type:          Simple
-
--- Extra files to be distributed with the package, such as examples or
--- a README.
 Extra-source-files:  README
-
--- Constraint on the version of Cabal needed to build this package.
 Cabal-version:       >=1.8
 
 Source-repository this
   type: git
   location: https://github.com/aristidb/http-types.git
-  tag: 0.8.3
+  tag: 0.8.4
 
 Source-repository head
   type: git
   location: https://github.com/aristidb/http-types.git
 
 Library
-  -- Modules exported by the library.
   Exposed-modules:     Network.HTTP.Types
                        Network.HTTP.Types.Header
                        Network.HTTP.Types.Method
@@ -63,24 +30,15 @@
                        Network.HTTP.Types.Status
                        Network.HTTP.Types.URI
                        Network.HTTP.Types.Version
-
-  -- GHC Options.
   GHC-Options:         -Wall
-  
-  -- Packages needed in order to build this package.
   Build-depends:       base >= 4 && < 5,
                        bytestring >=0.9.1.5 && <0.11,
                        array >=0.2 && <0.6,
-                       case-insensitive >=0.2 && <1.2,
+                       case-insensitive >=0.2 && <1.3,
                        blaze-builder >= 0.2.1.4 && < 0.4,
                        text >= 0.11.0.2
-  
-  -- Modules not exported by this package.
   -- Other-modules:       
-  
-  -- Extra tools (e.g. alex, hsc2hs, ...) needed to build the source.
   -- Build-tools:         
-  
 
 Test-suite runtests
     main-is:           runtests.hs