diff --git a/src/framework/MicroService.h b/src/framework/MicroService.h
index a991316..b75ef62 100644
--- a/src/framework/MicroService.h
+++ b/src/framework/MicroService.h
@@ -14,6 +14,7 @@
 #include <iostream>
 #include <random>
 #include <vector>
+#include <optional>
 
 // This must be defined for poco_debug and poco_trace macros to function.
 
diff --git a/src/framework/MicroServiceFuncs.h b/src/framework/MicroServiceFuncs.h
index 2d22392..25e0682 100644
--- a/src/framework/MicroServiceFuncs.h
+++ b/src/framework/MicroServiceFuncs.h
@@ -5,6 +5,7 @@
 #pragma once
 
 #include <string>
+#include <optional>
 
 #include "framework/OpenWifiTypes.h"