diff --git a/content/instant-messaging/server-support-for-audio-video-calls.md b/content/instant-messaging/server-support-for-audio-video-calls.md
index 2de2733..83acc10 100644
--- a/content/instant-messaging/server-support-for-audio-video-calls.md
+++ b/content/instant-messaging/server-support-for-audio-video-calls.md
@@ -153,7 +153,7 @@ Finally to see if it works, you can check your server with the web-based [Conver
 
 Troubleshooting
 ---
-In case you run in to issues have a look at the [notes by Daniel Gultsch](https://gist.github.com/iNPUTmice/a28c438d9bbf3f4a3d4c663ffaa224d9) for how to debug issues. Furthermore you can try either the [Conversations.im](xmpp:conversations@conference.siacs.eu?join) or [Homebrewserver.club](hbsc@muc.lurk.org?join) channels.
+In case you run in to issues have a look at the [notes by Daniel Gultsch](https://gist.github.com/iNPUTmice/a28c438d9bbf3f4a3d4c663ffaa224d9) for how to debug issues. Furthermore you can try either the [Conversations.im](xmpp:conversations@conference.siacs.eu?join) or [Homebrewserver.club](xmpp:hbsc@muc.lurk.org?join) channels.
 
 Thanks & Acknowledgements
 ---