diff --git a/HarmTrace.cabal b/HarmTrace.cabal
--- a/HarmTrace.cabal
+++ b/HarmTrace.cabal
@@ -1,5 +1,5 @@
 name:                   HarmTrace
-version:                0.2
+version:                0.3
 synopsis:               HarmTrace: Harmony Analysis and Retrieval of Music
 description:            HarmTrace: Harmony Analysis and Retrieval of Music 
                         with Type-level Representations of Abstract
@@ -22,7 +22,7 @@
 stability:              experimental
 maintainer:             bash@cs.uu.nl, jpm@cs.uu.nl
 category:               Music
-build-type:             Custom
+build-type:             Simple
 cabal-version:          >= 1.6
 tested-with:            GHC == 7.0.3
 
diff --git a/Setup.hs b/Setup.hs
--- a/Setup.hs
+++ b/Setup.hs
@@ -1,25 +1,6 @@
 module Main (main) where
 
 import Distribution.Simple
-import System.FilePath ((</>))
-import System.Cmd (system)
-import System.IO (hFlush, stdout)
-import System.Exit
-import System.Directory
 
 main :: IO ()
-main = defaultMainWithHooks (simpleUserHooks  { postConf = mypostConf })
-
-mypostConf a f d b = let path = "MIR" </> "GeneratedInstances"
-                         file = "GenerateInstances.hs"
-                         ghc = "ghc "
-                         flags = "-e main "
-                     in do putStr "Generating instances..." 
-                           hFlush stdout
-                           setCurrentDirectory path
-                           ec <- system (ghc ++ flags ++ file)
-                           case ec of
-                             ExitSuccess   -> putStrLn " done."
-                             ExitFailure _ -> putStrLn " failed!" >> exitWith ec
-                           postConf simpleUserHooks a f d b
-
+main = defaultMain