diff --git a/soundgen.cabal b/soundgen.cabal
--- a/soundgen.cabal
+++ b/soundgen.cabal
@@ -2,7 +2,7 @@
 --  see http://haskell.org/cabal/users-guide/
 
 name:                soundgen
-version:             0.1.0.0
+version:             0.1.0.1
 synopsis:            sound generator
 description:         Simple tone generator. You can decide the tone frequency and duration
 license:             BSD3
@@ -15,7 +15,7 @@
 extra-source-files:  ChangeLog.md
 cabal-version:       >=1.10
 
-executable sound
+executable soundgen
   main-is:             Main.hs
   -- other-modules:       
   -- other-extensions:    
diff --git a/src/Main.hs b/src/Main.hs
--- a/src/Main.hs
+++ b/src/Main.hs
@@ -28,4 +28,4 @@
 main = do args <- getArgs  
           case args of 
                [f,d] -> (makeWavFile (waveData (read f) (read d))) >> putStrLn "Done"
-               _     -> putStrLn "USAGE: sound <frequency (Hz)> <duration (ms)>"
+               _     -> putStrLn "USAGE: sound <frequency (Hz)> <duration (s)>"