From 3ff9ab332cf909da12361bf6ea495b2025ca8833 Mon Sep 17 00:00:00 2001
From: emekoi <emekankurumeh@outlook.com>
Date: Tue, 27 Nov 2018 17:54:09 +0000
Subject: [PATCH] fixed type signature

---
 std/os/windows/kernel32.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/std/os/windows/kernel32.zig b/std/os/windows/kernel32.zig
index 8fd351c12..7a6126133 100644
--- a/std/os/windows/kernel32.zig
+++ b/std/os/windows/kernel32.zig
@@ -259,7 +259,7 @@ pub extern "kernel32" stdcallcc fn InitOnceExecuteOnce(InitOnce: *RTL_RUN_ONCE,
 pub const PINIT_ONCE_FN = ?extern fn(InitOnce: *RTL_RUN_ONCE, Parameter: ?PVOID, Context: ?PVOID) BOOL;
 
 pub const RTL_RUN_ONCE = extern struct {
-    Ptr: PVOID,
+    Ptr: ?PVOID,
 };
 
 pub const INIT_ONCE_STATIC_INIT = RTL_RUN_ONCE {