diff --git a/machines/hippocampus/services/dyndns.nix b/machines/hippocampus/services/dyndns.nix
index 939be63..5219918 100644
--- a/machines/hippocampus/services/dyndns.nix
+++ b/machines/hippocampus/services/dyndns.nix
@@ -2,7 +2,7 @@
   sops.secrets.ddclient = {};
   services.ddclient = {
     enable = true;
-    usev4 = "web, web=dynamicdns.park-your-domain.com/getip";
+    usev4 = "webv4, web=dynamicdns.park-your-domain.com/getip";
     protocol = "namecheap";
     server = "dynamicdns.park-your-domain.com";
     username = "crompton.cc";