diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index cb235361783..3bbee1d6fe5 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -3037,6 +3037,7 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
       name = "${name}.nix";
 
       buildCommand = ''
+      export HOME="$TMPDIR"
       ${self.cabal2nix}/bin/cabal2nix ${src + "/${name}.cabal"} --sha256=FILTERME \
           | grep -v FILTERME | sed \
             -e 's/licenses.proprietary/licenses.unfree/' \