diff --git a/network-messagepack-rpc-websocket.cabal b/network-messagepack-rpc-websocket.cabal
--- a/network-messagepack-rpc-websocket.cabal
+++ b/network-messagepack-rpc-websocket.cabal
@@ -1,8 +1,8 @@
 name:                network-messagepack-rpc-websocket
-version:             0.1.0.0
+version:             0.1.1.0
 synopsis:            WebSocket backend for MessagePack RPC
 description:         WebSocket backend for "network-messagepack-rpc"
-homepage:            https://github.com/iij-ii/network-messagepack-rpc-websocket
+homepage:            https://github.com/iij-ii/direct-hs/tree/master/network-messagepack-rpc-websocket
 license:             BSD3
 license-file:        LICENSE
 author:              Yuji Yamamoto and Kazu Yamamoto
@@ -45,4 +45,4 @@
 
 source-repository head
   type:     git
-  location: https://github.com/iij-ii/network-messagepack-rpc-websocket
+  location: https://github.com/iij-ii/direct-hs
diff --git a/src/Network/MessagePack/RPC/Client/WebSocket.hs b/src/Network/MessagePack/RPC/Client/WebSocket.hs
--- a/src/Network/MessagePack/RPC/Client/WebSocket.hs
+++ b/src/Network/MessagePack/RPC/Client/WebSocket.hs
@@ -1,28 +1,31 @@
 {-# LANGUAGE OverloadedStrings #-}
 
 -- | MessagePack RPC Client based on WebSocket.
-module Network.MessagePack.RPC.Client.WebSocket (
+module Network.MessagePack.RPC.Client.WebSocket
+    (
     -- * Config
-    Config(..)
-  , NotificationHandler
-  , RequestHandler
-  , Logger
-  , Formatter
-  , defaultConfig
+      Config(..)
+    , NotificationHandler
+    , RequestHandler
+    , Logger
+    , Formatter
+    , defaultConfig
     -- * Backend
-  , Backend(..)
+    , Backend(..)
     -- * Client
-  , URL
-  , Client
-  , withClient
+    , URL
+    , Client
+    , withClient
+    , shutdown
     -- * Call and reply
-  , Result
-  , call
-  , reply
-  ) where
+    , Result
+    , call
+    , reply
+    )
+where
 
-import qualified Data.Text                        as T
-import qualified Network.WebSockets.Client        as Ws
+import qualified Data.Text                      as T
+import qualified Network.WebSockets.Client      as Ws
 
 import           Network.MessagePack.RPC.Client hiding (withClient)
 import qualified Network.MessagePack.RPC.Client as RPC (withClient)