diff --git a/nixos/tests/luks.nix b/nixos/tests/luks.nix
index 7440d110ad28..db2672eefdc0 100644
--- a/nixos/tests/luks.nix
+++ b/nixos/tests/luks.nix
@@ -1,3 +1,5 @@
+# Tests LUKS specifically with scripted stage 1. Remove in 26.11.
+
 { lib, pkgs, ... }:
 {
   name = "luks";
@@ -6,6 +8,8 @@
     { pkgs, ... }:
     {
 
+      boot.initrd.systemd.enable = false;
+
       # Use systemd-boot
       virtualisation = {
         emptyDiskImages = [