--- old/src/hotspot/share/gc/z/zPageTable.hpp	2018-01-10 17:33:34.373443862 +0100
+++ new/src/hotspot/share/gc/z/zPageTable.hpp	2018-01-10 17:33:34.093434632 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -32,6 +32,7 @@
 class ZPage;
 
 class ZPageTable VALUE_OBJ_CLASS_SPEC {
+  friend class VMStructs;
   friend class ZPageTableIterator;
 
 private: