diff --git a/services/idp/ui_config/webpack.config.js b/services/idp/ui_config/webpack.config.js
index 8752e2f33..b3eea6d2a 100644
--- a/services/idp/ui_config/webpack.config.js
+++ b/services/idp/ui_config/webpack.config.js
@@ -472,7 +472,10 @@ module.exports = function(webpackEnv) {
               // its runtime that would otherwise be processed through "file" loader.
               // Also exclude `html` and `json` extensions so they get processed
               // by webpacks internal loaders.
-              exclude: [/\.(js|mjs|jsx|ts|tsx)$/, /\.html$/, /\.json$/],
+              //
+              // html-webpack-plugin has a known bug,
+              // fixed by /^$/ https://github.com/jantimon/html-webpack-plugin/issues/1589
+              exclude: [/^$/, /\.(js|mjs|jsx|ts|tsx)$/, /\.html$/, /\.json$/],
               options: {
                 name: 'static/media/[name].[hash:8].[ext]',
               },