diff --git a/tests/make-disk-image-impure.nix b/tests/make-disk-image-impure.nix
new file mode 100644
index 0000000..cc02d94
--- /dev/null
+++ b/tests/make-disk-image-impure.nix
@@ -0,0 +1,11 @@
+{ pkgs ? import <nixpkgs> { }
+, diskoLib ? pkgs.callPackage ../lib { }
+}:
+diskoLib.makeDiskImageScript {
+  nixosConfig = pkgs.nixos [
+    ../module.nix
+    ../example/simple-efi.nix
+  ];
+  checked = true;
+}
+