diff --git a/pkgs/applications/window-managers/xmonad/default.nix b/pkgs/applications/window-managers/xmonad/default.nix
index ccd2dc05adbe..ed01ddd3e335 100644
--- a/pkgs/applications/window-managers/xmonad/default.nix
+++ b/pkgs/applications/window-managers/xmonad/default.nix
@@ -1,42 +1,17 @@
-{stdenv, fetchurl, ghc, X11, xmessage}:
-
-stdenv.mkDerivation (rec {
+{cabal, X11, xmessage}:
 
+cabal.mkDerivation (self : {
   pname = "xmonad";
-  version = "0.5";
-
-  name = "${pname}-${version}";
-
-  src = fetchurl {
-    url = "http://hackage.haskell.org/packages/archive/${pname}/${version}/${name}.tar.gz";
-    sha256 = "cfcc4501b000fa740ed35a5be87dc01216e036219551630dcf71d9c3cf57e4c4";
-  };
-
-  buildInputs = [ghc X11];
-
+  name = "${self.fname}";
+  version = "0.7";
+  sha256 = "d5ee338eb6d0680082e20eaafa0b23b32358fffe69e2ec4ad7bdf6e03c751d67";
+  extraBuildInputs = [X11];
   meta = {
     description = "xmonad is a tiling window manager for X";
   };
 
-  configurePhase = '' 
-    sed -i 's|"xmessage"|"${xmessage}/bin/xmessage"|' XMonad/Core.hs
-    ghc --make Setup.lhs
-    ./Setup configure --prefix="$out"
+  preConfigure = '' 
+    substituteInPlace XMonad/Core.hs --replace \
+      '"xmessage"' '"${xmessage}/bin/xmessage"'
   '';
-
-  buildPhase = ''
-    ./Setup build
-  '';
-
-  installPhase = ''
-    ./Setup copy
-    ./Setup register --gen-script
-    mkdir $out/nix-support
-    sed -i 's/|.*\(ghc-pkg update\)/| \1/' register.sh
-    cp register.sh $out/nix-support/register-ghclib.sh
-    sed -i 's/\(ghc-pkg update\)/\1 --user/' register.sh
-    mkdir -p $out/bin
-    cp register.sh $out/bin/register-ghclib-${name}.sh
-  '';
-
 })
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 2f0139b6167a..4d114779594b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5878,7 +5878,7 @@ let pkgs = rec {
   };
 
   xmonad = import ../applications/window-managers/xmonad {
-    inherit stdenv fetchurl ghc X11;
+    inherit cabal X11;
     inherit (xlibs) xmessage;
   };