diff --git a/include/ChassisIntrusionSensor.hpp b/include/ChassisIntrusionSensor.hpp
index a54299e..a86dabc 100644
--- a/include/ChassisIntrusionSensor.hpp
+++ b/include/ChassisIntrusionSensor.hpp
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <boost/asio/deadline_timer.hpp>
+#include <boost/asio/io_service.hpp>
 #include <gpiod.hpp>
 #include <sdbusplus/asio/object_server.hpp>