diff --git a/pkgs/development/compilers/ghc/with-packages.nix b/pkgs/development/compilers/ghc/with-packages.nix
index b32b12d5b95..8f5e8616a84 100644
--- a/pkgs/development/compilers/ghc/with-packages.nix
+++ b/pkgs/development/compilers/ghc/with-packages.nix
@@ -7,10 +7,11 @@ let
   packageDBFlag = if ghc761OrLater then "--package-db" else "--package-conf";
   libDir        = "$out/lib/ghc-${ghc.version}";
   packageCfgDir = "${libDir}/package.conf.d";
+  isHaskellPkg  = x: (x ? pname) && (x ? version);
 in
 buildEnv {
   name = "haskell-env-${ghc.name}";
-  paths = stdenv.lib.filter (x: x ? ghc) (stdenv.lib.closePropagation packages) ++ [ghc];
+  paths = stdenv.lib.filter isHaskellPkg (stdenv.lib.closePropagation packages) ++ [ghc];
   postBuild = ''
     . ${makeWrapper}/nix-support/setup-hook