diff --git a/src/MessagePipe.Interprocess/Workers/TcpWorker.cs b/src/MessagePipe.Interprocess/Workers/TcpWorker.cs
index edd4791..56255fe 100644
--- a/src/MessagePipe.Interprocess/Workers/TcpWorker.cs
+++ b/src/MessagePipe.Interprocess/Workers/TcpWorker.cs
@@ -232,6 +232,7 @@ async void RunReceiveLoop(SocketTcpClient client)
                                     var coreInterfaceType = t.GetInterfaces().First(x => x.IsGenericType && x.Name.StartsWith("IAsyncRequestHandlerCore"));
                                     var service = provider.GetRequiredService(interfaceType); // IAsyncRequestHandler<TRequest,TResponse>
                                     var genericArgs = interfaceType.GetGenericArguments(); // [TRequest, TResponse]
+                                    // Unity IL2CPP does not work(can not invoke nongenerics MessagePackSerializer)
                                     var request = MessagePackSerializer.Deserialize(genericArgs[0], message.ValueMemory, options.MessagePackSerializerOptions);
                                     var responseTask = coreInterfaceType.GetMethod("InvokeAsync")!.Invoke(service, new[] { request, CancellationToken.None });
 #if !UNITY_2018_3_OR_NEWER
diff --git a/src/MessagePipe.Unity/Assets/Plugins/MessagePipe.Interprocess/Runtime/Workers/TcpWorker.cs b/src/MessagePipe.Unity/Assets/Plugins/MessagePipe.Interprocess/Runtime/Workers/TcpWorker.cs
index da4d4db..23685dc 100644
--- a/src/MessagePipe.Unity/Assets/Plugins/MessagePipe.Interprocess/Runtime/Workers/TcpWorker.cs
+++ b/src/MessagePipe.Unity/Assets/Plugins/MessagePipe.Interprocess/Runtime/Workers/TcpWorker.cs
@@ -232,6 +232,7 @@ async void RunReceiveLoop(SocketTcpClient client)
                                     var coreInterfaceType = t.GetInterfaces().First(x => x.IsGenericType && x.Name.StartsWith("IAsyncRequestHandlerCore"));
                                     var service = provider.GetRequiredService(interfaceType); // IAsyncRequestHandler<TRequest,TResponse>
                                     var genericArgs = interfaceType.GetGenericArguments(); // [TRequest, TResponse]
+                                    // Unity IL2CPP does not work(can not invoke nongenerics MessagePackSerializer)
                                     var request = MessagePackSerializer.Deserialize(genericArgs[0], message.ValueMemory, options.MessagePackSerializerOptions);
                                     var responseTask = coreInterfaceType.GetMethod("InvokeAsync").Invoke(service, new[] { request, CancellationToken.None });
 #if !UNITY_2018_3_OR_NEWER