diff --git a/manifests/prod/delegation.yaml b/manifests/prod/delegation.yaml
index fdab21c..42308b7 100644
--- a/manifests/prod/delegation.yaml
+++ b/manifests/prod/delegation.yaml
@@ -55,6 +55,8 @@ data:
 
       location /.well-known/matrix/client {
         default_type application/json;
+        add_header Access-Control-Allow-Origin *;
+
         return 200 '{"m.homeserver": { "base_url": "https://$BASE_URL" }}';
       }
     }