diff --git a/cpp/example/example.cc b/cpp/example/example.cc
index 716f4f5bf..868687020 100644
--- a/cpp/example/example.cc
+++ b/cpp/example/example.cc
@@ -28,9 +28,8 @@ class Counter {
 RAY_REMOTE(Counter::FactoryCreate, &Counter::Add);
 
 int main(int argc, char **argv) {
-  /// configuration and initialization
-  ray::RayConfig config;
-  ray::Init(config);
+  /// initialization
+  ray::Init();
 
   /// put and get object
   auto object = ray::Put(100);
diff --git a/cpp/src/ray/api.cc b/cpp/src/ray/api.cc
index 645fc55db..31ddf6bc2 100644
--- a/cpp/src/ray/api.cc
+++ b/cpp/src/ray/api.cc
@@ -19,20 +19,21 @@
 
 namespace ray {
 
-void Init(ray::RayConfig &config, int *argc, char ***argv) {
+void Init(RayConfig &config, int *argc, char ***argv) {
   ray::internal::ConfigInternal::Instance().Init(config, argc, argv);
-  Init();
-}
-
-void Init(ray::RayConfig &config) { Init(config, nullptr, nullptr); }
-
-void Init() {
   std::call_once(is_inited_, [] {
     auto runtime = ray::internal::AbstractRayRuntime::DoInit();
     ray::internal::RayRuntimeHolder::Instance().Init(runtime);
   });
 }
 
+void Init(RayConfig &config) { Init(config, nullptr, nullptr); }
+
+void Init() {
+  RayConfig config;
+  Init(config, nullptr, nullptr);
+}
+
 void Shutdown() { ray::internal::AbstractRayRuntime::DoShutdown(); }
 
-}  // namespace ray
\ No newline at end of file
+}  // namespace ray