diff --git a/handle-like.cabal b/handle-like.cabal
--- a/handle-like.cabal
+++ b/handle-like.cabal
@@ -2,7 +2,7 @@
 build-type:	Simple
 
 name:		handle-like
-version:	0.0.0.5
+version:	0.0.0.6
 stability:	Experimental
 author:		Yoshikuni Jujo <PAF01143@nifty.ne.jp>
 maintainer:	Yoshikuni Jujo <PAF01143@nifty.ne.jp>
@@ -35,7 +35,7 @@
 source-repository	this
     type:	git
     location:	git://github.com/YoshikuniJujo/forest
-    tag:	handle-like-0.0.0.5
+    tag:	handle-like-0.0.0.6
 
 library
     hs-source-dirs:	src
diff --git a/src/Data/HandleLike.hs b/src/Data/HandleLike.hs
--- a/src/Data/HandleLike.hs
+++ b/src/Data/HandleLike.hs
@@ -36,6 +36,7 @@
 --	hlGetByte h = do [b] <- BS.unpack <$> BS.hGet h 1; return b
 	hlGetLine = (chopCR `liftM`) . BS.hGetLine
 --	hlGetContent = flip BS.hGet 1
+	hlDebug _ = BS.hPutStr stderr
 	hlClose = hClose
 
 hlPutStrLn :: HandleLike h => h -> BS.ByteString -> HandleMonad h ()
