diff --git a/nixos/tests/systemd-initrd-luks-fido2.nix b/nixos/tests/systemd-initrd-luks-fido2.nix
index e80d95f79c7..32c79b731d8 100644
--- a/nixos/tests/systemd-initrd-luks-fido2.nix
+++ b/nixos/tests/systemd-initrd-luks-fido2.nix
@@ -6,6 +6,8 @@ import ./make-test-python.nix ({ lib, pkgs, ... }: {
     virtualisation = {
       emptyDiskImages = [ 512 ];
       useBootLoader = true;
+      # Booting off the encrypted disk requires having a Nix store available for the init script
+      mountHostNixStore = true;
       useEFIBoot = true;
       qemu.package = lib.mkForce (pkgs.qemu_test.override { canokeySupport = true; });
       qemu.options = [ "-device canokey,file=/tmp/canokey-file" ];