diff --git a/mastus/nebula.nix b/mastus/nebula.nix
index a2f9963..ec87a37 100644
--- a/mastus/nebula.nix
+++ b/mastus/nebula.nix
@@ -17,7 +17,7 @@ in {
 
     settings = {
       serve_dns = true;
-      lighthouse.dns = { host = "192.168.18.36"; port = 53; };
+      lighthouse.dns = { host = "192.168.18.36"; port = 5353; };
     };
   };