diff --git a/pkgs/lib/platforms.nix b/pkgs/lib/platforms.nix
index 6cf9d9545842..fb0d647024da 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 = allBut [openbsd netbsd cygwin];
+  mesaPlatforms = allBut (openbsd ++ netbsd ++ cygwin);
 }