diff --git a/pkgs/games/pingus/default.nix b/pkgs/games/pingus/default.nix
index 8b8a6fed8410..9704cb93e6b4 100644
--- a/pkgs/games/pingus/default.nix
+++ b/pkgs/games/pingus/default.nix
@@ -1,8 +1,6 @@
 {stdenv, fetchurl, scons, SDL, SDL_image, boost, libpng, SDL_mixer, pkgconfig
 , mesa}:
 let
-  nativeBuildInputs = [ pkgconfig ];
-  buildInputs = [scons SDL SDL_image boost libpng SDL_mixer mesa];
   s = # Generated upstream information
   rec {
     baseName="pingus";
@@ -15,7 +13,8 @@ let
 in
 stdenv.mkDerivation rec {
   inherit (s) name version;
-  inherit buildInputs;
+  nativeBuildInputs = [ pkgconfig ];
+  buildInputs = [scons SDL SDL_image boost libpng SDL_mixer mesa];
   src = fetchurl {
     inherit (s) url sha256;
   };
diff --git a/pkgs/tools/graphics/quirc/default.nix b/pkgs/tools/graphics/quirc/default.nix
index caff97f0e32a..9891ea5e52b0 100644
--- a/pkgs/tools/graphics/quirc/default.nix
+++ b/pkgs/tools/graphics/quirc/default.nix
@@ -10,14 +10,13 @@ let
     rev = "5b262480091d5f84a67a4a56c728fc8b39844339";
     sha256 = "1w5qvjafn14s6jjs7kiwsqirlsqbgv0p152hrsq463pm34hp0lzy";
   };
+in
+stdenv.mkDerivation {
+  inherit (s) name version;
   nativeBuildInputs = [ pkgconfig ];
   buildInputs = [
     SDL SDL_gfx libjpeg libpng
   ];
-in
-stdenv.mkDerivation {
-  inherit (s) name version;
-  inherit buildInputs;
   src = fetchgit {
     inherit (s) url sha256 rev;
   };