diff --git a/src/js/static-filtering-parser.js b/src/js/static-filtering-parser.js
index bcb81e6fa..b022fae2f 100644
--- a/src/js/static-filtering-parser.js
+++ b/src/js/static-filtering-parser.js
@@ -19,7 +19,7 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* globals document */
+/* globals CSSStyleSheet, document */
 
 'use strict';