diff --git a/vendor/golang.org/x/sys/windows/types_windows_amd64.go b/vendor/golang.org/x/sys/windows/types_windows_amd64.go
new file mode 100644
index 0000000..7e154c2
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/types_windows_amd64.go
@@ -0,0 +1,22 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package windows
+
+type WSAData struct {
+	Version      uint16
+	HighVersion  uint16
+	MaxSockets   uint16
+	MaxUdpDg     uint16
+	VendorInfo   *byte
+	Description  [WSADESCRIPTION_LEN + 1]byte
+	SystemStatus [WSASYS_STATUS_LEN + 1]byte
+}
+
+type Servent struct {
+	Name    *byte
+	Aliases **byte
+	Proto   *byte
+	Port    uint16
+}