diff --git a/pkgs/development/haskell-modules/lib.nix b/pkgs/development/haskell-modules/lib.nix
index c9dc7254800e..8790b56e5019 100644
--- a/pkgs/development/haskell-modules/lib.nix
+++ b/pkgs/development/haskell-modules/lib.nix
@@ -301,7 +301,7 @@ rec {
   getHaskellBuildInputs = p:
     (overrideCabal p (args: {
       passthru = (args.passthru or {}) // {
-        _getHaskellBuildInputs = extractBuildInputs p.compiler args;
+        _getHaskellBuildInputs = (extractBuildInputs p.compiler args).haskellBuildInputs;
       };
     }))._getHaskellBuildInputs;