diff --git a/xmonad-extras.cabal b/xmonad-extras.cabal
--- a/xmonad-extras.cabal
+++ b/xmonad-extras.cabal
@@ -1,5 +1,5 @@
 name:               xmonad-extras
-version:            0.0
+version:            0.9
 homepage:           http://projects.haskell.org/xmonad-extras
 synopsis:           Third party extensions for xmonad with wacky dependencies
 category:           System
@@ -42,7 +42,7 @@
         ghc-options:    -Werror
 
     if impl (ghc == 6.10.1) && arch (x86_64)
-        ghc-options:    -O0
+        ghc-options:    --disable-optimizations
 
     if flag(with_parsec) && flag(with_split)
         build-depends: parsec, split