diff --git a/nixos/tests/all-tests.nix b/nixos/tests/all-tests.nix
index 0c8284eb08d0..96b34755d6f5 100644
--- a/nixos/tests/all-tests.nix
+++ b/nixos/tests/all-tests.nix
@@ -142,6 +142,7 @@ in
   nat.firewall = handleTest ./nat.nix { withFirewall = true; };
   nat.firewall-conntrack = handleTest ./nat.nix { withFirewall = true; withConntrackHelpers = true; };
   nat.standalone = handleTest ./nat.nix { withFirewall = false; };
+  ndppd = handleTest ./ndppd.nix {};
   neo4j = handleTest ./neo4j.nix {};
   netdata = handleTest ./netdata.nix {};
   networking.networkd = handleTest ./networking.nix { networkd = true; };