diff --git a/examples/file_server/file_socket.cpp b/examples/file_server/file_socket.cpp
index b938ef922e455145019f082def0d5917a8dff072..8432a61383e7bc76f031ae1429443c07a1645d5e 100644
--- a/examples/file_server/file_socket.cpp
+++ b/examples/file_server/file_socket.cpp
@@ -1,8 +1,4 @@
 
-#if defined(__MINGW32__) || defined(__MINGW64__) //who can tell me why?
-#include <iostream>
-#endif
-
 //configuration
 #define ASCS_SERVER_PORT		5050
 #define ASCS_RESTORE_OBJECT
diff --git a/include/ascs/executor.h b/include/ascs/executor.h
index 333e09fd8c3ac007dfbab51c2939bfd62132e8bf..546d1c168b7b2a5519a4a9490f0ea593ba848a73 100644
--- a/include/ascs/executor.h
+++ b/include/ascs/executor.h
@@ -13,6 +13,8 @@
 #ifndef _ASCS_EXECUTOR_H_
 #define _ASCS_EXECUTOR_H_
 
+#include <functional>
+
 #include <asio.hpp>
 
 #include "config.h"
diff --git a/include/ascs/object_pool.h b/include/ascs/object_pool.h
index fa1cf0caecefcfa4bdd2a37bb09d7be8ace14c21..e5ead1ea426e4e8c25229065c75ca897a4b2232b 100644
--- a/include/ascs/object_pool.h
+++ b/include/ascs/object_pool.h
@@ -16,8 +16,8 @@
 
 #include <unordered_map>
 
-#include "timer.h"
 #include "executor.h"
+#include "timer.h"
 #include "container.h"
 #include "service_pump.h"
 
diff --git a/include/ascs/socket.h b/include/ascs/socket.h
index aa60305b7a28135b708a1f4e6e31dc5c4cfacfe1..f29657c47625d5d383dd89ee1eca69980f2f51e4 100644
--- a/include/ascs/socket.h
+++ b/include/ascs/socket.h
@@ -13,8 +13,8 @@
 #ifndef _ASCS_SOCKET_H_
 #define _ASCS_SOCKET_H_
 
-#include "timer.h"
 #include "tracked_executor.h"
+#include "timer.h"
 
 namespace ascs
 {