diff --git a/pkgs/top-level/release.nix b/pkgs/top-level/release.nix
index af1ea67a86f6..648eef655d8d 100644
--- a/pkgs/top-level/release.nix
+++ b/pkgs/top-level/release.nix
@@ -382,6 +382,7 @@ with (import ./release-lib.nix);
 
   firefox36Pkgs.firefox = linux;
   firefox40Pkgs.firefox = linux;
+  firefox50Pkgs.firefox = linux;
 
   gnome = {
     gnome_panel = linux;