diff --git a/dynamixel_hardware/include/dynamixel_hardware/dynamixel_hardware.hpp b/dynamixel_hardware/include/dynamixel_hardware/dynamixel_hardware.hpp
index 412c929..8293ebc 100644
--- a/dynamixel_hardware/include/dynamixel_hardware/dynamixel_hardware.hpp
+++ b/dynamixel_hardware/include/dynamixel_hardware/dynamixel_hardware.hpp
@@ -28,6 +28,7 @@
 #include "dynamixel_hardware/visiblity_control.h"
 #include "rclcpp/macros.hpp"
 
+using hardware_interface::CallbackReturn;
 using hardware_interface::return_type;
 
 namespace dynamixel_hardware