diff --git a/craco.config.js b/craco.config.js
index b2f871d4..ce1395b5 100644
--- a/craco.config.js
+++ b/craco.config.js
@@ -112,14 +112,18 @@ module.exports = {
         const TerserPlugin = require('terser-webpack-plugin');
         webpackConfig.optimization.minimizer = webpackConfig.optimization.minimizer.map(plugin => {
           if (plugin.constructor.name === 'TerserPlugin') {
+            const originalOptions = plugin.options || {};
+            const originalTerserOptions = originalOptions.terserOptions || {};
+            const originalMangle = originalTerserOptions.mangle || {};
+
             return new TerserPlugin({
-              ...plugin.options,
+              ...originalOptions,
               terserOptions: {
-                ...plugin.options.terserOptions,
+                ...originalTerserOptions,
                 keep_classnames: /^(IChartApi|ISeriesApi|Re)$/, // 保留 lightweight-charts 的类名
                 keep_fnames: /^(createChart|addLineSeries|addSeries)$/, // 保留关键方法名
                 mangle: {
-                  ...plugin.options.terserOptions.mangle,
+                  ...originalMangle,
                   reserved: ['createChart', 'addLineSeries', 'addSeries', 'IChartApi', 'ISeriesApi'],
                 },
               },