diff --git a/modules/shell/tools.nix b/modules/shell/tools.nix
index 38f73a4..9e248d0 100644
--- a/modules/shell/tools.nix
+++ b/modules/shell/tools.nix
@@ -1,6 +1,6 @@
 { pkgs, lib, ... }:
 let
-  isDarwin = lib.strings.hasSuffix "darwin" pkgs.system;
+  isDarwin = lib.strings.hasSuffix "darwin" pkgs.stdenv.hostPlatform.system;
 in
 {
   environment.systemPackages = [