diff --git a/aether/ae_actions/ping.cpp b/aether/ae_actions/ping.cpp
index 31e31988..d358b256 100644
--- a/aether/ae_actions/ping.cpp
+++ b/aether/ae_actions/ping.cpp
@@ -51,7 +51,9 @@ void Ping::SendPing() {
             std::chrono::duration_cast<std::chrono::milliseconds>(
                 ping_interval_)
                 .count());
-        auto& pong_promise = auth_api->ping(ping_interval_u64);
+        // FIXME: for rx_window send interval value
+        auto& pong_promise =
+            auth_api->ping(ping_interval_u64, ping_interval_u64);
         auto req_id = pong_promise.request_id();
 
         // save the ping request
diff --git a/aether/work_cloud_api/work_server_api/authorized_api.h b/aether/work_cloud_api/work_server_api/authorized_api.h
index 31e5b8b0..d72c4d66 100644
--- a/aether/work_cloud_api/work_server_api/authorized_api.h
+++ b/aether/work_cloud_api/work_server_api/authorized_api.h
@@ -33,7 +33,9 @@ class AuthorizedApi : public ApiClass {
  public:
   explicit AuthorizedApi(ProtocolContext& protocol_context);
 
-  Method<4, ApiPromise<void>(std::uint64_t next_connect_ms_duration)> ping;
+  Method<4, ApiPromise<void>(std::uint64_t next_connect_ms_duration,
+                             std::uint64_t rx_window_ms)>
+      ping;
   Method<6, void(AeMessage message)> send_message;
   Method<7, void(std::vector<AeMessage> messages)> send_messages;
   Method<11, ApiPromise<void>(Uid uid)> check_access_for_send_message;