diff --git a/src/host_error_monitor.cpp b/src/host_error_monitor.cpp
index 313ef29..c637188 100644
--- a/src/host_error_monitor.cpp
+++ b/src/host_error_monitor.cpp
@@ -16,7 +16,9 @@
 #include <peci.h>
 #include <systemd/sd-journal.h>
 
+#include <boost/asio/io_service.hpp>
 #include <boost/asio/posix/stream_descriptor.hpp>
+#include <boost/asio/steady_timer.hpp>
 #include <gpiod.hpp>
 #include <sdbusplus/asio/object_server.hpp>