diff --git a/pkgs/by-name/tr/transmission_4/package.nix b/pkgs/by-name/tr/transmission_4/package.nix
index 3c19ae576f1d..06e9cf106a77 100644
--- a/pkgs/by-name/tr/transmission_4/package.nix
+++ b/pkgs/by-name/tr/transmission_4/package.nix
@@ -255,6 +255,6 @@ stdenv.mkDerivation (finalAttrs: {
       gpl2Plus
       mit
     ];
-    platforms = lib.platforms.unix;
+    platforms = if enableMac then lib.platforms.darwin else lib.platforms.unix;
   };
 })