diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+# 1.2.3
+* fix haddock documentation.
+
 # 1.2.2
 * export getReqBody.
 
diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2014 Hirotomo Moriwaki
+Copyright (c) 2014-2015 Hirotomo Moriwaki
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the
diff --git a/apiary.cabal b/apiary.cabal
--- a/apiary.cabal
+++ b/apiary.cabal
@@ -1,5 +1,5 @@
 name:                apiary
-version:             1.2.2
+version:             1.2.3
 synopsis:            Simple and type safe web framework that generate web API documentation.
 description:
   Simple and type safe web framework that can be automatically generate API documentation.
@@ -50,7 +50,7 @@
 maintainer:          HirotomoMoriwaki<philopon.dependence@gmail.com>
 Homepage:            https://github.com/philopon/apiary
 Bug-reports:         https://github.com/philopon/apiary/issues
-copyright:           (c) 2014 Hirotomo Moriwaki
+copyright:           (c) 2014-2015 Hirotomo Moriwaki
 category:            Web
 build-type:          Simple
 stability:           stable
diff --git a/src/Control/Monad/Apiary/Action/Internal.hs b/src/Control/Monad/Apiary/Action/Internal.hs
--- a/src/Control/Monad/Apiary/Action/Internal.hs
+++ b/src/Control/Monad/Apiary/Action/Internal.hs
@@ -197,8 +197,9 @@
     = Unknown S.ByteString -- ^ raw body
     | UrlEncoded [Param] [File]
     | Multipart
-        {-#UNPACK#-}!S.ByteString -- ^ boundary
-        [Param] [File]
+        {-#UNPACK#-}!S.ByteString
+        [Param]
+        [File] -- ^ boundary params files
 
 data ActionState = ActionState
     { actionResponse    :: ResponseBody