diff --git a/services/matrix/conduit.nix b/services/matrix/conduit.nix
index 33b3cf6..e1e80cb 100644
--- a/services/matrix/conduit.nix
+++ b/services/matrix/conduit.nix
@@ -35,6 +35,7 @@ in {
       server = { "m.server" = "${domain}:443"; };
       client = {
         "m.homeserver"."base_url" = "https://${domain}";
+        "org.matrix.msc3575.proxy"."url" = "https://${domain}";
         "m.identity_server"."base_url" = "https://vector.im";
       };
     in {