diff --git a/pkgs/development/interpreters/racket/default.nix b/pkgs/development/interpreters/racket/default.nix
index 2bf7ec5d2df..6f3df4e866d 100644
--- a/pkgs/development/interpreters/racket/default.nix
+++ b/pkgs/development/interpreters/racket/default.nix
@@ -80,6 +80,6 @@ stdenv.mkDerivation rec {
     homepage = http://racket-lang.org/;
     license = licenses.lgpl3;
     maintainers = with maintainers; [ kkallio henrytill vrthra ];
-    platforms = platforms.unix;
+    platforms = platforms.x86_64;
   };
 }