diff --git a/features/sops.nix b/features/sops.nix
index 12b935e..c2f6ff1 100644
--- a/features/sops.nix
+++ b/features/sops.nix
@@ -9,7 +9,10 @@ in
     age = {
       sshKeyPaths = [ ];
       keyFile =
-        if pkgs.stdenv.isDarwin then "/usr/local/sops/age/keys.txt" else "/persist/sops/age/keys.txt";
+        if pkgs.stdenv.hostPlatform.isDarwin then
+          "/usr/local/sops/age/keys.txt"
+        else
+          "/persist/sops/age/keys.txt";
     };
 
     secrets = {