1 files changed, 3 insertions, 3 deletions
diff --git a/nixpkgs/pkgs/tools/graphics/pngcrush/default.nix b/nixpkgs/pkgs/tools/graphics/pngcrush/default.nix
index 5bc52b92f0d2..e4a8b705a165 100644
--- a/nixpkgs/pkgs/tools/graphics/pngcrush/default.nix
+++ b/nixpkgs/pkgs/tools/graphics/pngcrush/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, libpng }:
+{ lib, stdenv, fetchurl, libpng }:
 
 stdenv.mkDerivation rec {
   name = "pngcrush-1.8.13";
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   meta = {
     homepage = "http://pmt.sourceforge.net/pngcrush";
     description = "A PNG optimizer";
-    license = stdenv.lib.licenses.free;
-    platforms = with stdenv.lib.platforms; linux ++ darwin;
+    license = lib.licenses.free;
+    platforms = with lib.platforms; linux ++ darwin;
   };
 }