diff --git a/pkgs/applications/graphics/cinepaint/default.nix b/pkgs/applications/graphics/cinepaint/default.nix
index 1f28e3d4c07..22ac473bdd9 100644
--- a/pkgs/applications/graphics/cinepaint/default.nix
+++ b/pkgs/applications/graphics/cinepaint/default.nix
@@ -1,10 +1,12 @@
 { stdenv, fetchurl, cmake, pkgconfig, gtk2, freetype, fontconfig, lcms,
   flex, libtiff, libjpeg, libpng, libexif, zlib, perl, libX11,
-  perlXMLParser, python, pygtk, gettext, intltool, babl, gegl,
+  perlXMLParser, pythonPackages, gettext, intltool, babl, gegl,
   glib, makedepend, xf86vidmodeproto, xineramaproto, libXmu, openexr,
   mesa, libXext, libXpm, libXau, libXxf86vm, pixman, libpthreadstubs, fltk } :
 
-stdenv.mkDerivation rec {
+let
+  inherit (pythonPackages) python pygtk;
+in stdenv.mkDerivation rec {
   name = "cinepaint-1.1";
 
   src = fetchurl {