diff --git a/pkgs/applications/video/mpv/default.nix b/pkgs/applications/video/mpv/default.nix
index 78e0544fa1d..f3c7d376100 100644
--- a/pkgs/applications/video/mpv/default.nix
+++ b/pkgs/applications/video/mpv/default.nix
@@ -39,7 +39,7 @@
 , pulseSupport       ? config.pulseaudio or stdenv.isLinux, libpulseaudio ? null
 , rubberbandSupport  ? stdenv.isLinux, rubberband    ? null
 , screenSaverSupport ? true,           libXScrnSaver ? null
-, sambaSupport       ? true,           samba         ? null
+, sambaSupport       ? stdenv.isLinux, samba         ? null
 , sdl2Support        ? true,           SDL2          ? null
 , sndioSupport       ? true,           sndio         ? null
 , speexSupport       ? true,           speex         ? null
diff --git a/pkgs/misc/sndio/default.nix b/pkgs/misc/sndio/default.nix
index 0f09483a857..c415714f573 100644
--- a/pkgs/misc/sndio/default.nix
+++ b/pkgs/misc/sndio/default.nix
@@ -12,6 +12,7 @@ stdenv.mkDerivation rec {
   };
 
   postFixup = stdenv.lib.optionalString stdenv.isDarwin ''
+    install_name_tool -id $out/lib/libsndio.7.0.dylib $out/lib/libsndio.7.0.dylib
     for file in $out/bin/*; do
       install_name_tool -change libsndio.7.0.dylib $out/lib/libsndio.dylib $file
     done