diff --git a/names-th.cabal b/names-th.cabal
--- a/names-th.cabal
+++ b/names-th.cabal
@@ -1,5 +1,5 @@
 name:                names-th
-version:             0.2.0.3
+version:             0.2.0.4
 synopsis:            Manipulate name strings for TH
 description:         This package includes functions to manipulate name string
                      and extra library functions for Template Haskell.
@@ -8,11 +8,12 @@
 license-file:        LICENSE
 author:              Kei Hibino
 maintainer:          ex8k.hibino@gmail.com
-copyright:           Copyright (c) 2013-2017 Kei Hibino
+copyright:           Copyright (c) 2013-2018 Kei Hibino, 2015 Shohei Murayama
 category:            Development
 build-type:          Simple
 cabal-version:       >=1.10
-tested-with:           GHC == 8.2.1
+tested-with:           GHC == 8.4.1, GHC == 8.4.2
+                     , GHC == 8.2.1, GHC == 8.2.2
                      , GHC == 8.0.1, GHC == 8.0.2
                      , GHC == 7.10.1, GHC == 7.10.2, GHC == 7.10.3
                      , GHC == 7.8.1, GHC == 7.8.2, GHC == 7.8.3, GHC == 7.8.4
diff --git a/src/Language/Haskell/TH/Name/CamelCase.hs b/src/Language/Haskell/TH/Name/CamelCase.hs
--- a/src/Language/Haskell/TH/Name/CamelCase.hs
+++ b/src/Language/Haskell/TH/Name/CamelCase.hs
@@ -1,6 +1,6 @@
 -- |
 -- Module      : Language.Haskell.TH.Name.CamelCase
--- Copyright   : 2013 Kei Hibino
+-- Copyright   : 2013-2018 Kei Hibino, 2015 Shohei Murayama
 -- License     : BSD3
 --
 -- Maintainer  : ex8k.hibino@gmail.com
@@ -18,13 +18,14 @@
   -- $makeNames
   conCamelcaseName, varCamelcaseName,
 
-  varNameWithPrefix,
-
   -- * Functions to generate haskell template from names
   -- $makeTemplates
   toTypeCon, toDataCon,
 
-  toVarExp, toVarPat
+  toVarExp, toVarPat,
+
+  -- * Deprecated
+  varNameWithPrefix,
   ) where
 
 import Data.Char (toUpper, toLower)
@@ -106,6 +107,7 @@
 --
 -- >  name `varNamePrefix` prefix
 --
+{-# DEPRECATED varNameWithPrefix "should simply use toVarName." #-}
 varNameWithPrefix :: String -> String -> VarName
 varNameWithPrefix n p =  toVarName $ p ++ camelcaseUpper n