diff --git a/tv/2configs/retiolum.nix b/tv/2configs/retiolum.nix
index 6e05b1489..f79454157 100644
--- a/tv/2configs/retiolum.nix
+++ b/tv/2configs/retiolum.nix
@@ -15,4 +15,5 @@ with config.krebs.lib;
     tincPackage = pkgs.tinc_pre;
   };
   tv.iptables.input-internet-accept-tcp = singleton "tinc";
+  tv.iptables.input-internet-accept-udp = singleton "tinc";
 }