1 files changed, 1 insertions, 3 deletions
diff --git a/pkgs/development/tools/parsing/bison/default.nix b/pkgs/development/tools/parsing/bison/default.nix
index 085b1e0f636..953915729e4 100644
--- a/pkgs/development/tools/parsing/bison/default.nix
+++ b/pkgs/development/tools/parsing/bison/default.nix
@@ -1,13 +1,11 @@
 {stdenv, fetchurl, m4}:
 assert m4 != null;
-derivation {
+stdenv.mkDerivation {
   name = "bison-1.875";
-  system = stdenv.system;
   builder = ./builder.sh;
   src = fetchurl {
     url = ftp://ftp.nluug.nl/pub/gnu/bison/bison-1.875.tar.bz2;
     md5 = "b7f8027b249ebd4dd0cc948943a71af0";
   };
-  stdenv = stdenv;
   m4 = m4;
 }