diff --git a/util/async.c b/util/async.c
index a8094aa..fd6a1cd 100644
--- a/util/async.c
+++ b/util/async.c
@@ -1,4 +1,8 @@
+/* NTSTATUS chicanery. See precompiled.h */
+#define WIN32_NO_STATUS
 #include <windows.h>
+#undef WIN32_NO_STATUS
+#include <winternl.h>
 #include <ntstatus.h>
 
 #include <assert.h>