diff --git a/pkgs/applications/networking/browsers/firefox/15.0.nix b/pkgs/applications/networking/browsers/firefox/15.0.nix
index 186f9602f0a..54903496391 100644
--- a/pkgs/applications/networking/browsers/firefox/15.0.nix
+++ b/pkgs/applications/networking/browsers/firefox/15.0.nix
@@ -169,7 +169,6 @@ 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 = {
diff --git a/pkgs/top-level/release.nix b/pkgs/top-level/release.nix
index d8e192a6e55..68c387d2a55 100644
--- a/pkgs/top-level/release.nix
+++ b/pkgs/top-level/release.nix
@@ -361,6 +361,7 @@ with (import ./release-lib.nix);
   firefox36Pkgs.firefox = linux;
   firefox12Pkgs.firefox = linux;
   firefox13Pkgs.firefox = linux;
+  firefox15Pkgs.firefox = linux;
 
   gnome = {
     gnome_panel = linux;