--- UbiNodeCensus.cpp
+++ UbiNodeCensus.cpp
@@ -1,16 +1,20 @@
 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
  * vim: set ts=8 sts=4 et sw=4 tw=99:
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "js/UbiNodeCensus.h"
 
+#include "jscntxt.h"
+#include "jscompartment.h"
+#include "jsobjinlines.h"
+
 using namespace js;
 
 namespace JS {
 namespace ubi {
 
 void
 CountDeleter::operator()(CountBase* ptr)
 {