diff --git a/nix/nixos-module/container/dns.nix b/nix/nixos-module/container/dns.nix
index bf4147b..0ffe18f 100644
--- a/nix/nixos-module/container/dns.nix
+++ b/nix/nixos-module/container/dns.nix
@@ -88,6 +88,7 @@ in
             {
               id = "dyndns";
               action = "update";
+              key = "dyndns";
             }
             {
               id = "zone_xfr";