diff --git a/images/docker-ddclient.md b/images/docker-ddclient.md
index 9ec67d0d0..1c28bea91 100644
--- a/images/docker-ddclient.md
+++ b/images/docker-ddclient.md
@@ -34,7 +34,13 @@ The architectures supported by this image are:
 
 ## Application Setup
 
-Edit the ddclient.conf file found in your /config volume. This config file has many providers to choose from and you basically just have to uncomment your provider and add username/password where requested. If you modify ddclient.conf, ddclient will automaticcaly restart and read the config.
+Edit the `ddclient.conf` file found in your `/config` volume (also see official [ddclient documentation](https://ddclient.net)). This config file has many providers to choose from and you basically just have to uncomment your provider and add username/password where requested. If you modify ddclient.conf, ddclient will automaticcaly restart and read the config.
+
+### Get dynamic IP from Fritz.Box
+If ddclient shall fetch the dynamic (public) IP-address from a fritz.box (AVM) add the following line to `/config/ddclient.conf`:
+````
+use=cmd, cmd=/etc/ddclient/get-ip-from-fritzbox
+````
 
 ## Usage
 
@@ -145,6 +151,7 @@ We publish various [Docker Mods](https://github.com/linuxserver/docker-mods) to
 
 ## Versions
 
+* **15.05.21:** - Distribute script 'sample-get-ip-from-fritzbox' from ddclient repo
 * **08.03.21:** - Added bind-tools to provide nsupdate
 * **01.06.20:** - Rebasing to alpine 3.12.
 * **08.02.20:** - Ingest from Github.