diff --git a/example_7/hardware/include/ros2_control_demo_example_7/r6bot_hardware.hpp b/example_7/hardware/include/ros2_control_demo_example_7/r6bot_hardware.hpp
index 4d06f64bf..17688a80b 100644
--- a/example_7/hardware/include/ros2_control_demo_example_7/r6bot_hardware.hpp
+++ b/example_7/hardware/include/ros2_control_demo_example_7/r6bot_hardware.hpp
@@ -31,7 +31,7 @@ namespace ros2_control_demo_example_7
 {
 using CallbackReturn = rclcpp_lifecycle::node_interfaces::LifecycleNodeInterface::CallbackReturn;
 
-class HARDWARE_INTERFACE_PUBLIC RobotSystem : public hardware_interface::SystemInterface
+class RobotSystem : public hardware_interface::SystemInterface
 {
 public:
   CallbackReturn on_init(const hardware_interface::HardwareInfo & info) override;