diff --git a/nixos/tests/all-tests.nix b/nixos/tests/all-tests.nix
index 36c51b573100..4cb4e28f1782 100644
--- a/nixos/tests/all-tests.nix
+++ b/nixos/tests/all-tests.nix
@@ -607,6 +607,7 @@ in {
   systemd-networkd-dhcpserver-static-leases = handleTest ./systemd-networkd-dhcpserver-static-leases.nix {};
   systemd-networkd-ipv6-prefix-delegation = handleTest ./systemd-networkd-ipv6-prefix-delegation.nix {};
   systemd-networkd-vrf = handleTest ./systemd-networkd-vrf.nix {};
+  systemd-no-tainted = handleTest ./systemd-no-tainted.nix {};
   systemd-nspawn = handleTest ./systemd-nspawn.nix {};
   systemd-oomd = handleTest ./systemd-oomd.nix {};
   systemd-shutdown = handleTest ./systemd-shutdown.nix {};
diff --git a/nixos/tests/systemd-no-tainted.nix b/nixos/tests/systemd-no-tainted.nix
new file mode 100644
index 000000000000..f0504065f2a4
--- /dev/null
+++ b/nixos/tests/systemd-no-tainted.nix
@@ -0,0 +1,14 @@
+import ./make-test-python.nix ({ pkgs, ... }: {
+  name = "systemd-no-tainted";
+
+  nodes.machine = { };
+
+  testScript = ''
+    machine.wait_for_unit("multi-user.target")
+    with subtest("systemctl should not report tainted with unmerged-usr"):
+        output = machine.succeed("systemctl status")
+        print(output)
+        assert "Tainted" not in output
+        assert "unmerged-usr" not in output
+  '';
+})