diff --git a/cabal2nix.cabal b/cabal2nix.cabal
--- a/cabal2nix.cabal
+++ b/cabal2nix.cabal
@@ -1,5 +1,5 @@
 Name:                   cabal2nix
-Version:                1.47
+Version:                1.48
 Copyright:              Peter Simons, Andres Loeh
 License:                BSD3
 License-File:           LICENSE
@@ -33,8 +33,8 @@
   .
   The only required argument is the path to the cabal file. For example:
   .
-  > cabal2nix http://hackage.haskell.org/packages/archive/cabal2nix/1.47/cabal2nix.cabal
-  > cabal2nix cabal://cabal2nix-1.47
+  > cabal2nix http://hackage.haskell.org/packages/archive/cabal2nix/1.48/cabal2nix.cabal
+  > cabal2nix cabal://cabal2nix-1.48
   .
   If the @--sha256@ option has not been specified, cabal2nix calls
   @nix-prefetch-url@ to determine the hash automatically. This causes
diff --git a/src/Cabal2Nix.hs b/src/Cabal2Nix.hs
--- a/src/Cabal2Nix.hs
+++ b/src/Cabal2Nix.hs
@@ -83,7 +83,7 @@
   let packageId = package (packageDescription cabal)
   sha <- if null (optSha256 cfg) then hashPackage packageId else return (optSha256 cfg)
 
-  let deriv  = (cabal2nix cabal) { sha256 = sha, runHaddock = optHaddock cfg }
+  let deriv  = (cabal2nix cabal) { sha256 = sha, runHaddock = optHaddock cfg, doCheck = optDoCheck cfg }
       deriv' = deriv { metaSection = (metaSection deriv)
                                      { maintainers = optMaintainer cfg
                                      , platforms   = optPlatform cfg
diff --git a/src/Cabal2Nix/PostProcess.hs b/src/Cabal2Nix/PostProcess.hs
--- a/src/Cabal2Nix/PostProcess.hs
+++ b/src/Cabal2Nix/PostProcess.hs
@@ -8,7 +8,7 @@
 postProcess :: Derivation -> Derivation
 postProcess deriv@(MkDerivation {..})
   | pname == "alex"             = deriv { buildTools = "perl":buildTools }
-  | pname == "cabal-install" && version >= (Version [0,14] [])
+  | pname == "cabal-install" && version >= Version [0,14] []
                                 = deriv { phaseOverrides = cabalInstallPostInstall }
   | pname == "cairo"            = deriv { extraLibs = "pkgconfig":"libc":"cairo":"zlib":extraLibs }
   | pname == "cuda"             = deriv { phaseOverrides = cudaConfigurePhase, extraLibs = "cudatoolkit":"nvidia_x11":"self.stdenv.gcc":extraLibs }
@@ -48,7 +48,7 @@
   | pname == "vacuum"           = deriv { extraLibs = "ghcPaths":extraLibs }
   | pname == "wxcore"           = deriv { extraLibs = "wxGTK":"mesa":"libX11":extraLibs }
   | pname == "wxc"              = deriv { extraLibs = "wxGTK":"mesa":"libX11":extraLibs, phaseOverrides = wxcPostInstall }
-  | pname == "X11" && version >= (Version [1,6] [])
+  | pname == "X11" && version >= Version [1,6] []
                                 = deriv { extraLibs = "libXinerama":"libXext":"libXrender":extraLibs }
   | pname == "X11"              = deriv { extraLibs = "libXinerama":"libXext":extraLibs }
   | pname == "X11-xft"          = deriv { extraLibs = "pkgconfig":"freetype":"fontconfig":extraLibs
diff --git a/src/Hackage4Nix.hs b/src/Hackage4Nix.hs
--- a/src/Hackage4Nix.hs
+++ b/src/Hackage4Nix.hs
@@ -204,7 +204,7 @@
 badPackagePaths :: [FilePath]
 badPackagePaths = [ "haskell-platform/2011.2.0.1.nix", "haskell-platform/2011.4.0.0.nix"
                   , "haskell-platform/2012.2.0.0.nix", "haskell-platform/2012.4.0.0.nix"
-                  , "top-level/all-packages.nix"
+                  , "top-level/all-packages.nix",      "top-level/haskell-packages.nix"
                   ]
 
 -- Packages that we cannot regenerate automatically yet. This list