diff --git a/pkgs/development/libraries/vapoursynth/default.nix b/pkgs/development/libraries/vapoursynth/default.nix
index b0f8f5edd30b..7c7987478b80 100644
--- a/pkgs/development/libraries/vapoursynth/default.nix
+++ b/pkgs/development/libraries/vapoursynth/default.nix
@@ -50,7 +50,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with lib; {
-    broken = stdenv.isDarwin;
+    broken = stdenv.isDarwin; # see https://github.com/NixOS/nixpkgs/pull/189446 for partial fix
     description = "A video processing framework with the future in mind";
     homepage    = "http://www.vapoursynth.com/";
     license     = licenses.lgpl21;