diff --git a/port/win/env_win.cc b/port/win/env_win.cc
index 3108cf6e7..7ee58a85b 100644
--- a/port/win/env_win.cc
+++ b/port/win/env_win.cc
@@ -9,6 +9,8 @@
 
 #if defined(OS_WIN)
 
+#include "port/win/env_win.h"
+
 #include <direct.h>  // _rmdir, _mkdir, _getcwd
 #include <errno.h>
 #include <io.h>   // _access
@@ -17,6 +19,7 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <windows.h>
+#include <winioctl.h>
 
 #include <algorithm>
 #include <ctime>
@@ -27,7 +30,6 @@
 #include "monitoring/thread_status_util.h"
 #include "port/port.h"
 #include "port/port_dirent.h"
-#include "port/win/env_win.h"
 #include "port/win/io_win.h"
 #include "port/win/win_logger.h"
 #include "rocksdb/env.h"