diff --git a/build/deps.js b/build/deps.js
index <HASH>..<HASH> 100644
--- a/build/deps.js
+++ b/build/deps.js
@@ -34,6 +34,7 @@ var deps = {
 	Extensions: {
 		src: [
 			'ext/LatLngUtil.js',
+			'ext/PolygonUtil.js',
 			'ext/LineUtil.Intersect.js',
 			'ext/Polyline.Intersect.js',
 			'ext/Polygon.Intersect.js'
Including the PolygonUtil file in the dependencies config so it is included in the build.