diff --git a/packages/example-chat-system/envoy.yaml b/packages/example-chat-system/envoy.yaml
index 71bf1986..4c007213 100644
--- a/packages/example-chat-system/envoy.yaml
+++ b/packages/example-chat-system/envoy.yaml
@@ -22,7 +22,9 @@ static_resources:
                       - match: { prefix: "/" }
                         route:
                           cluster: x_grpc
+                          # https://www.envoyproxy.io/docs/envoy/v1.11.1/api-v2/api/v2/route/route.proto#envoy-api-field-route-routeaction-max-grpc-timeout
                           max_grpc_timeout: 0s
+                          idle_timeout: 0s
                     cors:
                       allow_origin_string_match:
                         - prefix: "*"