1 files changed, 2 insertions, 3 deletions
diff --git a/pkgs/development/compilers/helium/default.nix b/pkgs/development/compilers/helium/default.nix
index e45aab344e845..ac4ef2fb20d2a 100644
--- a/pkgs/development/compilers/helium/default.nix
+++ b/pkgs/development/compilers/helium/default.nix
@@ -2,13 +2,12 @@
 
 assert ghc != null;
 
-derivation {
+stdenv.mkDerivation {
   name = "helium-1.2";
-  system = stdenv.system;
   builder = ./builder.sh;
   src = fetchurl {
     url = http://www.cs.uu.nl/helium/distr/helium-1.2-src.tar.gz;
     md5 = "6ea1d6e4436e137d75f5354b4758f299";
   };
-  inherit stdenv ghc;
+  inherit ghc;
 }