diff --git a/pkgs/development/libraries/x265/default.nix b/pkgs/development/libraries/x265/default.nix
index 3d10538314f0..6eacb730a544 100644
--- a/pkgs/development/libraries/x265/default.nix
+++ b/pkgs/development/libraries/x265/default.nix
@@ -41,9 +41,7 @@ stdenv.mkDerivation rec {
     hash = "sha256-ZjUx80HFOJ9GDXMOYuEKT8yjQoyiyhCWk4Z7xf4uKAc=";
   };
 
-  # TODO: apply patch unconditionally in staging. It's conditional to
-  # save rebuild on staging-next.
-  patches = lib.optionals (stdenv.isDarwin && stdenv.isx86_64) [
+  patches = [
     ./darwin-__rdtsc.patch
   ];