diff --git a/pkgs/development/haskell-modules/make-package-set.nix b/pkgs/development/haskell-modules/make-package-set.nix
index 5192e09e2de..e599b56545d 100644
--- a/pkgs/development/haskell-modules/make-package-set.nix
+++ b/pkgs/development/haskell-modules/make-package-set.nix
@@ -101,7 +101,7 @@ self: let
       '';
   };
 
-  hackage2nix = name: version: haskellSrc2nix {
+  hackage2nix = name: version: self.haskellSrc2nix {
     name   = "${name}-${version}";
     sha256 = ''$(sed -e 's/.*"SHA256":"//' -e 's/".*$//' "${all-cabal-hashes}/${name}/${version}/${name}.json")'';
     src    = "${all-cabal-hashes}/${name}/${version}/${name}.cabal";