diff --git a/pkgs/development/python-modules/setuptools/default.nix b/pkgs/development/python-modules/setuptools/default.nix
index 468ea50c9243..92c39afc249e 100644
--- a/pkgs/development/python-modules/setuptools/default.nix
+++ b/pkgs/development/python-modules/setuptools/default.nix
@@ -1,12 +1,13 @@
 { stdenv, fetchurl, python, wrapPython }:
 
 stdenv.mkDerivation rec {
-  name = "python-setuptools-" + version;
+  shortName = "setuptools-${version}";
+  name = "python-${shortName}";
 
   version = "0.6c11";
 
   src = fetchurl {
-    url = "http://pypi.python.org/packages/source/s/setuptools/${name}.tar.gz";
+    url = "http://pypi.python.org/packages/source/s/setuptools/${shortName}.tar.gz";
     sha256 = "1lx1hwxkhipyh206bgl90ddnfcnb68bzcvyawczbf833fadyl3v3";
   };