diff --git a/lib/filter.js b/lib/filter.js
index 0a62c2a..beab7f0 100644
--- a/lib/filter.js
+++ b/lib/filter.js
@@ -159,8 +159,8 @@ function logicBrotli () {
         if (assetTxt.length) {
           // Input has to be buffer for brotli
           let input = new Buffer.from(assetTxt, 'utf-8')
-          // brotli compress using highest level
-          br.compress(input, { quality: br.BROTLI_MAX_QUALITY }, (err, output) => {
+          // brotli defaults to max compression level
+          br.compress(input, (err, output) => {
             if (!err) {
               // Save the compressed file to .br
               route.set(path + '.br', output)