diff --git a/source/_integrations/fritz.markdown b/source/_integrations/fritz.markdown
index cf2cad37b27..d9f77bd8288 100644
--- a/source/_integrations/fritz.markdown
+++ b/source/_integrations/fritz.markdown
@@ -24,4 +24,6 @@ The `fritz` platform offers presence detection by looking at connected devices t
 TR-064 needs to be enabled in the FRITZ!Box network settings for Home Assistant to login and read device info.
 </div>
 
+The configuration in the UI asks for a username. Starting from FRITZ!OS 7.24 the FRITZ!Box creates a random username for the admin user if you didn't set one yourself. This can be found after logging into the FRITZ!Box and visiting System -> FRITZ!Box Users -> Users. The username starts with `fritz` followed by four random numbers. Under properties on the right it says `created automatically`. Prior to FRITZ!OS 7.24 the default username was `admin`.
+
 See the [device tracker integration page](/integrations/device_tracker/) for instructions how to configure the people to be tracked.