diff --git a/shelltestrunner.cabal b/shelltestrunner.cabal
--- a/shelltestrunner.cabal
+++ b/shelltestrunner.cabal
@@ -1,5 +1,5 @@
 name:           shelltestrunner
-version:        0.1
+version:        0.2
 category:       Testing
 synopsis:       A handy tool for testing command-line programs.
 description:
@@ -54,6 +54,7 @@
 
 executable shelltestrunner
   main-is:        shelltestrunner.hs
+  ghc-options:    -Wall -threaded
   build-depends:
                  base >= 3 && < 5
                 ,parsec