diff --git a/build/gulpfile.hygiene.js b/build/gulpfile.hygiene.js
index ff2b745d94c..634efcc741d 100644
--- a/build/gulpfile.hygiene.js
+++ b/build/gulpfile.hygiene.js
@@ -121,6 +121,7 @@ gulp.task('tslint', function () {
 });
 
 var hygiene = exports.hygiene = function (some, options) {
+	options = options || {};
 	var errorCount = 0;
 
 	var eol = es.through(function (file) {