diff --git a/pkgs/tools/text/kdiff3/default.nix b/pkgs/tools/text/kdiff3/default.nix
index 1a313ca215be..05cd13c413b8 100644
--- a/pkgs/tools/text/kdiff3/default.nix
+++ b/pkgs/tools/text/kdiff3/default.nix
@@ -1,14 +1,12 @@
 { stdenv, fetchurl, cmake, qt4, perl, kdelibs, kdebase, automoc4, phonon, gettext}:
 
-stdenv.mkDerivation {
+stdenv.mkDerivation rec {
   name = "kdiff3-0.9.95";
   src = fetchurl {
-    url = http://downloads.sourceforge.net/project/kdiff3/kdiff3/0.9.95/kdiff3-0.9.95.tar.gz;
-    sha256 = "0372cebc8957f256a98501a4ac3c3634c7ecffb486ece7e7819c90d876202f0f";   
+    url = "mirror://sourceforge/kdiff3/${name}.tar.gz";
+    sha256 = "03rg41vdi44wh7kygv46nkzyrirl6qyar901hnlmdwjpi6ycwwh3";
   };
 
-  cmakeFlags = [ "-DGETTEXT_INCLUDE_DIR=${gettext}/include" ];
-
   # kdebase allows having a konqueror plugin built
   buildInputs = [ cmake qt4 perl kdelibs automoc4 phonon gettext kdebase ];