diff --git a/hosts/fw/modules/ddclient.nix b/hosts/fw/modules/ddclient.nix
index e5ea482..4df533c 100644
--- a/hosts/fw/modules/ddclient.nix
+++ b/hosts/fw/modules/ddclient.nix
@@ -2,7 +2,8 @@
 {
   services.ddclient = {
     enable = true;
-    usev4 = "if, if=wan";
+    usev4 = "ifv4, ifv4=wan";
+    usev6 = "disabled";
     protocol = "hetzner";
     # server = "https://dns.hetzner.com/api/v1/";
     username = "dominik.polakovics@cloonar.com";