diff --git a/modules/system/dns/default.nix b/modules/system/dns/default.nix
index 8765a36..9d84a55 100644
--- a/modules/system/dns/default.nix
+++ b/modules/system/dns/default.nix
@@ -16,6 +16,7 @@ in
       zones = {
         "." = {
           file = pkgs.dns-root-data.path + "/root.hints";
+          master = true;
         };
       };
     };