1 files changed, 5 insertions, 5 deletions
diff --git a/pkgs/development/tools/parsing/pt-support/pt-support-1.0.nix b/pkgs/development/tools/parsing/pt-support/pt-support-1.0.nix
index 66ca31566da..ed8bde95c0e 100644
--- a/pkgs/development/tools/parsing/pt-support/pt-support-1.0.nix
+++ b/pkgs/development/tools/parsing/pt-support/pt-support-1.0.nix
@@ -1,12 +1,12 @@
-{stdenv, fetchurl, aterm, toolbuslib}: derivation {
+{stdenv, fetchurl, aterm, toolbuslib}: 
+
+stdenv.mkDerivation {
   name = "pt-support-1.0";
-  system = stdenv.system;
   builder = ./builder.sh;
   src = fetchurl {
     url = http://www.cwi.nl/projects/MetaEnv/pt-support/pt-support-1.0.tar.gz;
     md5 = "cc96dc2bfbaf3f218dfe9a0b8bb4d801";
   };
-  stdenv = stdenv;
-  aterm = aterm;
-  toolbuslib = toolbuslib;
+  inherit aterm toolbuslib;
+  buildInputs = [aterm toolbuslib];
 }