diff --git a/CARET_trace/include/caret_trace/tracing_controller.hpp b/CARET_trace/include/caret_trace/tracing_controller.hpp
index 910202d5..02bbddb3 100644
--- a/CARET_trace/include/caret_trace/tracing_controller.hpp
+++ b/CARET_trace/include/caret_trace/tracing_controller.hpp
@@ -79,12 +79,12 @@ class TracingController
   /// @param callback Address of callback instance.
   void add_timer_callback(const void * timer_handle, const void * callback);
 
-  /// @brief Register topic name for ros_trace_rcl_publisher_init
+  /// @brief Register binding information for rclcpp_buffer_to_ipb tracepoint.
   /// @param buffer  Address of the buffer.
   /// @param ipb  Address of the IntraProcessBuffer.
   void add_buffer(const void * buffer, const void * ipb);
 
-  /// @brief Register topic name for ros_trace_rcl_publisher_init
+  /// @brief Register binding information for rclcpp_ipb_to_subscription tracepoint.
   /// @param ipb  Address of the IntraProcessBuffer.
   /// @param subscription  Address of the subscription instance.
   void add_ipb(const void * ipb, const void * subscription);