--- a/src/hotspot/share/gc/z/zTracer.cpp	Sun Jan 20 16:55:21 2019 +0100
+++ b/src/hotspot/share/gc/z/zTracer.cpp	Sun Jan 20 12:20:37 2019 -0500
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 2019, 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
@@ -27,6 +27,7 @@
 #include "gc/shared/gcId.hpp"
 #include "gc/shared/gcLocker.hpp"
 #include "jfr/jfrEvents.hpp"
+#include "runtime/safepoint.hpp"
 #include "runtime/safepointVerifiers.hpp"
 #if INCLUDE_JFR
 #include "jfr/metadata/jfrSerializer.hpp"