diff --git a/nixos/modules/profiles/macos-builder.nix b/nixos/modules/profiles/macos-builder.nix
index 77f3224a7294..0cbac3bd61fe 100644
--- a/nixos/modules/profiles/macos-builder.nix
+++ b/nixos/modules/profiles/macos-builder.nix
@@ -62,7 +62,7 @@ in
 
       # This installCredentials script is written so that it's as easy as
       # possible for a user to audit before confirming the `sudo`
-      installCredentials = pkgs.writeShellScript "install-credentials" ''
+      installCredentials = hostPkgs.writeShellScript "install-credentials" ''
         KEYS="''${1}"
         INSTALL=${hostPkgs.coreutils}/bin/install
         "''${INSTALL}" -g nixbld -m 600 "''${KEYS}/${user}_${keyType}" ${privateKey}