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:	0.0.0.6
+version:	0.0.0.7
 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-0.0.0.6
+    tag:	handle-like-0.0.0.7
 
 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
@@ -26,7 +26,7 @@
 			10 -> return ""
 			_ -> BS.cons b `liftM` hlGetLine h
 	hlGetContent = flip hlGet 1
-	hlDebug = hlPut
+	hlDebug _ _ = return ()
 	hlError _ msg = error $ BSC.unpack msg
 
 instance HandleLike Handle where
