diff --git a/pkgs/development/libraries/mesa/default.nix b/pkgs/development/libraries/mesa/default.nix
index 558291f5327..cbe52ae0e37 100644
--- a/pkgs/development/libraries/mesa/default.nix
+++ b/pkgs/development/libraries/mesa/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchurl, pkgconfig, x11, xlibs, libdrm, expat }:
 
-if stdenv.system != "i686-linux" && stdenv.system != "x86_64-linux" && stdenv.system != "i686-darwin" && stdenv.system != "i686-freebsd" then
+if ! stdenv.lib.lists.elem stdenv.system stdenv.lib.platforms.mesaPlatforms then
   throw "unsupported platform for Mesa"
 else
 
diff --git a/pkgs/lib/platforms.nix b/pkgs/lib/platforms.nix
index 5174476f954..6cf9d954584 100644
--- a/pkgs/lib/platforms.nix
+++ b/pkgs/lib/platforms.nix
@@ -11,5 +11,5 @@ rec {
   unix = linux ++ darwin ++ freebsd ++ openbsd;
   all = linux ++ darwin ++ cygwin ++ freebsd ++ openbsd;
   allBut = platform: lists.filter (x: platform != x) all;
-  mesaPlatforms = linux;
+  mesaPlatforms = allBut [openbsd netbsd cygwin];
 }