diff --git a/src/ray/core_worker/core_worker.h b/src/ray/core_worker/core_worker.h
index af2e14cdc..78e786930 100644
--- a/src/ray/core_worker/core_worker.h
+++ b/src/ray/core_worker/core_worker.h
@@ -51,6 +51,8 @@ namespace ray {
 
 class CoreWorker;
 
+// If you change this options's definition, you must change the options used in
+// other files. Please take a global search and modify them !!!
 struct CoreWorkerOptions {
   // Callback that must be implemented and provided by the language-specific worker
   // frontend to execute tasks and return their results.
diff --git a/streaming/src/test/mock_actor.cc b/streaming/src/test/mock_actor.cc
index f505496f2..0c15d72c6 100644
--- a/streaming/src/test/mock_actor.cc
+++ b/streaming/src/test/mock_actor.cc
@@ -479,6 +479,7 @@ class StreamingWorker {
   StreamingWorker(const std::string &store_socket, const std::string &raylet_socket,
                   int node_manager_port, const gcs::GcsClientOptions &gcs_options)
       : test_suite_(nullptr), peer_actor_handle_(nullptr) {
+    // You must keep it same with `src/ray/core_worker/core_worker.h:CoreWorkerOptions`
     CoreWorkerOptions options = {
         WorkerType::WORKER,  // worker_type
         Language::PYTHON,    // langauge
@@ -499,6 +500,8 @@ class StreamingWorker {
                   _7),  // task_execution_callback
         nullptr,        // check_signals
         nullptr,        // gc_collect
+        nullptr,        // spill_objects
+        nullptr,        // restore_spilled_objects
         nullptr,        // get_lang_stack
         nullptr,        // kill_main
         true,           // ref_counting_enabled
diff --git a/streaming/src/test/queue_tests_base.h b/streaming/src/test/queue_tests_base.h
index afa1fb7af..f57c31e10 100644
--- a/streaming/src/test/queue_tests_base.h
+++ b/streaming/src/test/queue_tests_base.h
@@ -223,6 +223,7 @@ class StreamingQueueTestBase : public ::testing::TestWithParam<uint64_t> {
     }
     STREAMING_LOG(INFO) << "Sub process: writer.";
 
+    // You must keep it same with `src/ray/core_worker/core_worker.h:CoreWorkerOptions`
     CoreWorkerOptions options = {
         WorkerType::DRIVER,             // worker_type
         Language::PYTHON,               // langauge
@@ -242,6 +243,8 @@ class StreamingQueueTestBase : public ::testing::TestWithParam<uint64_t> {
         nullptr,                        // task_execution_callback
         nullptr,                        // check_signals
         nullptr,                        // gc_collect
+        nullptr,                        // spill_objects
+        nullptr,                        // restore_spilled_objects
         nullptr,                        // get_lang_stack
         nullptr,                        // kill_main
         true,                           // ref_counting_enabled