diff --git a/src/astrbot_sdk/runtime/api/context.py b/src/astrbot_sdk/runtime/api/context.py
index 44a989726..b76ccf5fa 100644
--- a/src/astrbot_sdk/runtime/api/context.py
+++ b/src/astrbot_sdk/runtime/api/context.py
@@ -9,7 +9,7 @@ class Context(BaseContext):
         super().__init__()
         self.conversation_manager = conversation_manager
         # Auto-register the conversation manager
-        self.register_component(self.conversation_manager)
+        self._register_component(self.conversation_manager)
 
     @classmethod
     def default_context(cls, runner: StarRunner) -> Context:
diff --git a/src/astrbot_sdk/tests/start_client.py b/src/astrbot_sdk/tests/start_client.py
index d9df59d5c..b3e9db5ee 100644
--- a/src/astrbot_sdk/tests/start_client.py
+++ b/src/astrbot_sdk/tests/start_client.py
@@ -27,7 +27,7 @@ class TestContext(Context):
     def __init__(self, conversation_manager: ConversationManager):
         super().__init__()
         self.conversation_manager = conversation_manager
-        self.register_component(self.conversation_manager)
+        self._register_component(self.conversation_manager)
 
 
 async def amain():