diff --git a/content/infos/digitale-muendigkeit/index.md b/content/infos/digitale-muendigkeit/index.md
index 268bd36bbc2164cd266022ecbfafb0bd357d6670..6ac874f5d7622f983fa1c824ad3f68ed068be83f 100644
--- a/content/infos/digitale-muendigkeit/index.md
+++ b/content/infos/digitale-muendigkeit/index.md
@@ -5,9 +5,9 @@ title = "Digitale Mündigkeit"
 zielgruppe = ["Eltern", "Lehrkräfte und Schulen"]
 
 [extra.platforms]
-wiki = ""
-forum = ""
-chat = ""
+#wiki = ""
+#forum = ""
+chat = "#teckids/meßdorfer-feld:matrix.teckids.org"
 
 [[extra.further.muendigkeit]]
 image = "muendigkeit_dc.jpg"
diff --git a/content/infos/kinder-digitales/index.md b/content/infos/kinder-digitales/index.md
index d8f2ad513ab7a8ad158b5d62d7a93db7a5bdab03..fe7e7e8b26a73dbb91046989ad727d59b9b1156b 100644
--- a/content/infos/kinder-digitales/index.md
+++ b/content/infos/kinder-digitales/index.md
@@ -5,9 +5,9 @@ title = "Kinder und Digitales"
 zielgruppe = ["Eltern"]
 
 [extra.platforms]
-wiki = ""
-forum = ""
-chat = ""
+#wiki = ""
+#forum = ""
+chat = "#teckids/meßdorfer-feld:matrix.teckids.org"
 
 [[extra.further.literatur]]
 image = "screen-teens.jpg"
diff --git a/content/infos/verstehen/index.md b/content/infos/verstehen/index.md
index a4079272882497e5bba2fb441e2fba375e245ca7..766dfd0fef25ebc4f5bac64cd2f164215de46288 100644
--- a/content/infos/verstehen/index.md
+++ b/content/infos/verstehen/index.md
@@ -13,8 +13,8 @@ zielgruppe = ["Eltern"]
 
 [extra.platforms]
 wiki = ""
-forum = ""
-chat = ""
+forum = "hacknfun/tinkering/9"
+chat = "#teckids/meßdorfer-feld:matrix.teckids.org"
 +++
 
 Einfach mal schnell ein Computerspiel spielen? Das war bis in die
diff --git a/templates/shortcodes/teckids_related.html b/templates/shortcodes/teckids_related.html
index 766d0b34f5964a2da5d759861c8f61299270091a..b75c9b869d575081a0b376dde0a795885772f82d 100644
--- a/templates/shortcodes/teckids_related.html
+++ b/templates/shortcodes/teckids_related.html
@@ -28,7 +28,7 @@
           </div>
         </div>
         <div class="media-content">
-          <a href="https://forum.teckids.org/{{page.extra.platforms.forum}}">
+          <a href="https://forum.teckids.org/c/{{page.extra.platforms.forum}}">
             <p class="title is-4">Forum</p>
             <p class="subtitle is-6">Fragen und Diskussion im Teckids-Forum</p>
           </a>