diff --git a/nixos/doc/manual/release-notes/rl-2505.section.md b/nixos/doc/manual/release-notes/rl-2505.section.md
index ab7e2289702be..4324a151e2eae 100644
--- a/nixos/doc/manual/release-notes/rl-2505.section.md
+++ b/nixos/doc/manual/release-notes/rl-2505.section.md
@@ -63,6 +63,8 @@
 
 - [waagent](https://github.com/Azure/WALinuxAgent), the Microsoft Azure Linux Agent (waagent) manages Linux provisioning and VM interaction with the Azure Fabric Controller. Available with [services.waagent](options.html#opt-services.waagent.enable).
 
+- [duckdns](https://www.duckdns.org), free dynamic DNS. Available with [services.duckdns](options.html#opt-services.duckdns.enable)
+
 - [nostr-rs-relay](https://git.sr.ht/~gheartsfield/nostr-rs-relay/), This is a nostr relay, written in Rust. Available as [services.nostr-rs-relay](options.html#opt-services.nostr-rs-relay.enable).
 
 - [Actual Budget](https://actualbudget.org/), a local-first personal finance app. Available as [services.actual](#opt-services.actual.enable).
diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index 9fe8e3be6477d..92e8db5ee8e1c 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -763,6 +763,7 @@
   ./services/misc/disnix.nix
   ./services/misc/docker-registry.nix
   ./services/misc/domoticz.nix
+  ./services/misc/duckdns.nix
   ./services/misc/duckling.nix
   ./services/misc/dwm-status.nix
   ./services/misc/dysnomia.nix