diff --git a/pkgs/applications/networking/browsers/firefox/15.0.nix b/pkgs/applications/networking/browsers/firefox/15.0.nix
index 54903496391..186f9602f0a 100644
--- a/pkgs/applications/networking/browsers/firefox/15.0.nix
+++ b/pkgs/applications/networking/browsers/firefox/15.0.nix
@@ -169,6 +169,7 @@ rec {
       description = "Mozilla Firefox - the browser, reloaded";
       homepage = http://www.mozilla.com/en-US/firefox/;
       maintainers = [ stdenv.lib.maintainers.eelco ];
+      platforms = with stdenv.lib.platforms; linux;
     };
 
     passthru = {