diff --git a/doc/conf.py b/doc/conf.py
index 613b567..33c67e3 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -68,6 +68,12 @@
             "icon": "https://gitlab.esrf.fr/workflow/ewoksadmin/ewoksdoc/-/raw/main/logos/ewoks_for_sphinx_theme.svg",  # This svg contains dark / light mode information
             "type": "local",
         },
+        {
+            "name": "matrix",
+            "url": "https://matrix.to/#/#ewoks:helmholtz.cloud",
+            "icon": "https://ewoks.esrf.fr/en/latest/_static/matrix-icon.svg",  # This svg contains dark / light mode information
+            "type": "local",
+        },
     ],
     "logo": {
         "text": docstitle,