diff --git a/nixos/reisen-ct/network.nix b/nixos/reisen-ct/network.nix
index fa9e509e..8787aeb2 100644
--- a/nixos/reisen-ct/network.nix
+++ b/nixos/reisen-ct/network.nix
@@ -1,5 +1,6 @@
 {
   lib,
+  config,
   ...
 }: let
   inherit (lib) mkDefault;
@@ -7,6 +8,7 @@ in {
   services.resolved.enable = true;
   services.avahi = {
     enable = mkDefault true;
+    ipv6 = mkDefault config.networking.enableIPv6;
     publish = {
       enable = mkDefault true;
       domain = mkDefault true;