diff --git a/pkgs/tools/text/diffutils/builder.sh b/pkgs/tools/text/diffutils/builder.sh
deleted file mode 100644
index 6c508ed5614..00000000000
--- a/pkgs/tools/text/diffutils/builder.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-source $stdenv/setup
-if test -n "$coreutils"; then PATH=$coreutils/bin:$PATH; fi
-genericBuild
\ No newline at end of file
diff --git a/pkgs/tools/text/diffutils/default.nix b/pkgs/tools/text/diffutils/default.nix
index 227d445086d..57531c69f29 100644
--- a/pkgs/tools/text/diffutils/default.nix
+++ b/pkgs/tools/text/diffutils/default.nix
@@ -2,11 +2,10 @@
 
 stdenv.mkDerivation {
   name = "diffutils-2.8.1";
-  builder = ./builder.sh;
   src = fetchurl {
     url = http://nix.cs.uu.nl/dist/tarballs/diffutils-2.8.1.tar.gz;
     md5 = "71f9c5ae19b60608f6c7f162da86a428";
   };
   /* If no explicit coreutils is given, use the one from stdenv. */
-  inherit coreutils;
+  buildInputs = [coreutils];
 }