diff --git a/Setup.hs b/Setup.hs
deleted file mode 100644
--- a/Setup.hs
+++ /dev/null
@@ -1,2 +0,0 @@
-import Distribution.Simple
-main = defaultMain
diff --git a/Setup.lhs b/Setup.lhs
new file mode 100644
--- /dev/null
+++ b/Setup.lhs
@@ -0,0 +1,4 @@
+#! /usr/bin/env runhaskell
+
+> import Distribution.Simple
+> main = defaultMain
diff --git a/polimorf.cabal b/polimorf.cabal
--- a/polimorf.cabal
+++ b/polimorf.cabal
@@ -1,5 +1,5 @@
 name:               polimorf
-version:            0.3.0
+version:            0.3.1
 synopsis:           Working with the PoliMorf dictionary
 description:
     The library provides functionality for manipulating PoliMorf, the