diff --git a/vendor/golang.org/x/sys/windows/asm_windows_amd64.s b/vendor/golang.org/x/sys/windows/asm_windows_amd64.s
new file mode 100644
index 0000000..5bfdf79
--- /dev/null
+++ b/vendor/golang.org/x/sys/windows/asm_windows_amd64.s
@@ -0,0 +1,13 @@
+// Copyright 2009 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.
+
+//
+// System calls for amd64, Windows are implemented in runtime/syscall_windows.goc
+//
+
+TEXT ·getprocaddress(SB), 7, $0-32
+	JMP	syscall·getprocaddress(SB)
+
+TEXT ·loadlibrary(SB), 7, $0-24
+	JMP	syscall·loadlibrary(SB)