diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@
 Usage
 -----
 
-Cgrep 6.6.2. Usage: cgrep [OPTION] [PATTERN] files...
+Cgrep 6.6.3. Usage: cgrep [OPTION] [PATTERN] files...
 
 cgrep [OPTIONS] [ITEM]
 
diff --git a/cgrep.cabal b/cgrep.cabal
--- a/cgrep.cabal
+++ b/cgrep.cabal
@@ -1,6 +1,6 @@
 Name:                cgrep
 Description:         Cgrep: a context-aware grep for source codes
-Version:             6.6.2
+Version:             6.6.3
 Synopsis:            Command line tool
 Homepage:            http://awgn.github.io/cgrep/
 License:             GPL-2
diff --git a/src/Main.hs b/src/Main.hs
--- a/src/Main.hs
+++ b/src/Main.hs
@@ -237,7 +237,7 @@
     -- display the configuration in use
 
     when (isJust confpath) $
-      putStrLn $ showBold opts ("Using '" ++ (fromJust confpath) ++ "' configuration file...")
+      hPutStrLn stderr $ showBold opts ("Using '" ++ (fromJust confpath) ++ "' configuration file...")
 
     -- load files to parse: