diff --git a/examples/server/server.cpp b/examples/server/server.cpp
index 1ebf32ee0..b2a047414 100644
--- a/examples/server/server.cpp
+++ b/examples/server/server.cpp
@@ -29,6 +29,8 @@
 #include <thread>
 #include <signal.h>
 #include <memory>
+#include <iostream>
+#include <boost/asio.hpp>
 
 using json = nlohmann::ordered_json;