diff --git a/home/applications/alacritty/default.nix b/home/applications/alacritty/default.nix
index b660609..4220518 100644
--- a/home/applications/alacritty/default.nix
+++ b/home/applications/alacritty/default.nix
@@ -1,9 +1,13 @@
 {
+  lib,
+  pkgs,
+  ...
+}: {
   programs.alacritty = {
     enable = true;
     settings = {
       env.WINIT_X11_SCALE_FACTOR = "1"; # workaround for scaling in X11
-      window.option_as_alt = "Both"; # for zellij on macOS
+      window.option_as_alt = lib.mkIf pkgs.stdenv.hostPlatform.isDarwin "Both"; # for zellij on macOS
     };
   };
 }