diff --git a/occ_events.hpp b/occ_events.hpp
index cc6f616..26318e8 100644
--- a/occ_events.hpp
+++ b/occ_events.hpp
@@ -1,6 +1,8 @@
 #pragma once
 
 #include <systemd/sd-event.h>
+
+#include <memory>
 namespace open_power
 {
 namespace occ