diff --git a/Network/Web/Params.hs b/Network/Web/Params.hs
--- a/Network/Web/Params.hs
+++ b/Network/Web/Params.hs
@@ -163,6 +163,8 @@
               | FkSetCookie2
               | FkStatus
               | FkTransferEncoding
+              | FkAcceptEncoding -- ^ sent by client
+              | FkContentEncoding -- ^ returned by server
               | FkOther S.ByteString
               deriving (Eq,Show,Ord)
 
@@ -187,6 +189,8 @@
     , (FkServer            , "Server")
     , (FkSetCookie2        , "Set-Cookie2")
     , (FkStatus            , "Status")
+    , (FkAcceptEncoding    , "Accept-Encoding" )
+    , (FkContentEncoding   , "Content-Encoding" )
     , (FkTransferEncoding  , "Transfer-Encoding" )
     ]
 
diff --git a/webserver.cabal b/webserver.cabal
--- a/webserver.cabal
+++ b/webserver.cabal
@@ -1,5 +1,5 @@
 Name:                   webserver
-Version:                0.7.0.0
+Version:                0.7.1.0
 Author:                 Kazu Yamamoto <kazu@iij.ad.jp>
 Maintainer:             John W. Lato <jwlato@gmail.com>
 License:                BSD3