diff --git a/src/pattern.js b/src/pattern.js
index 5300f8366..0b5f4c435 100644
--- a/src/pattern.js
+++ b/src/pattern.js
@@ -1,5 +1,6 @@
 /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+/* globals CanvasGraphics, ColorSpace, createScratchCanvas, DeviceRgbCS, error, info, isArray, isPDFFunction, isStream, PDFFunction, TODO, Util, warn */
 /* Copyright 2012 Mozilla Foundation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");