diff --git a/lib/module.js b/lib/module.js
index 1a77c85..b1ac1ad 100644
--- a/lib/module.js
+++ b/lib/module.js
@@ -26,6 +26,8 @@ export default function nuxtPurgeCss(moduleOptions) {
     ],
     styleExtensions: ['.css'],
     whitelist: ['body', 'html', 'nuxt-progress'],
+    whitelistPatterns: [],
+    whitelistPatternsChildren: [],
     extractors: [
       {
         extractor: class {