diff --git a/webpack.prod.js b/webpack.prod.js
index ca6981722..69d77fb10 100644
--- a/webpack.prod.js
+++ b/webpack.prod.js
@@ -16,7 +16,8 @@ module.exports = [
     optimization: {
       minimizer: [
         new ESBuildMinifyPlugin({
-          target: 'es2015'
+          target: 'es2015',
+          exclude: ['MathJax/extensions/a11y/mathmaps']
         })
       ],
       splitChunks: {