diff --git a/enet/Http.hpp b/enet/Http.hpp
index 89ec044..f53bc88 100644
--- a/enet/Http.hpp
+++ b/enet/Http.hpp
@@ -10,6 +10,7 @@
 #include <map>
 #include <thread>
 #include <ethread/tools.hpp>
+#include <functional>
 
 namespace enet {
 	enum class HTTPAnswerCode {
diff --git a/enet/Tcp.hpp b/enet/Tcp.hpp
index 67ab50e..9705436 100644
--- a/enet/Tcp.hpp
+++ b/enet/Tcp.hpp
@@ -7,6 +7,7 @@
 
 #include <etk/types.hpp>
 #include <mutex>
+#include <functional>
 #ifdef __TARGET_OS__Windows
 	#include <winsock2.h>
 	#include <ws2tcpip.h>