diff --git a/hosts/vm/periodique/element.nix b/hosts/vm/periodique/element.nix
index 518da13..406f21f 100644
--- a/hosts/vm/periodique/element.nix
+++ b/hosts/vm/periodique/element.nix
@@ -13,6 +13,11 @@
                 base_url = "https://matrix.crans.org/";
                 server_name = "crans.org";
               };
+
+              # https://github.com/element-hq/element-web/blob/develop/docs/jitsi.md
+              "jitsi" = {
+                "preferred_domain" = "jitsi.crans.org";
+              };
             };
             default_theme = "light";
             features = {