diff --git a/controller_manager/test/test_chainable_controller/test_chainable_controller.hpp b/controller_manager/test/test_chainable_controller/test_chainable_controller.hpp
index a7205d3024..03dc4812a5 100644
--- a/controller_manager/test/test_chainable_controller/test_chainable_controller.hpp
+++ b/controller_manager/test/test_chainable_controller/test_chainable_controller.hpp
@@ -22,7 +22,7 @@
 #include "controller_interface/chainable_controller_interface.hpp"
 #include "controller_manager/visibility_control.h"
 #include "rclcpp/subscription.hpp"
-#include "realtime_tools/realtime_buffer.h"
+#include "realtime_tools/realtime_buffer.hpp"
 #include "std_msgs/msg/float64_multi_array.hpp"
 
 namespace test_chainable_controller