diff --git a/example/electron/.kktrc.ts b/example/electron/.kktrc.ts
index 70e7a549..f5565841 100644
--- a/example/electron/.kktrc.ts
+++ b/example/electron/.kktrc.ts
@@ -4,7 +4,6 @@ import { LoaderConfOptions } from 'kkt';
 
 export default (conf: Configuration, env: 'development' | 'production', options: LoaderConfOptions) => {
   conf = lessModules(conf, env, options);
-  conf.output!.publicPath = './';
   const regexp = /(GenerateSW)/;
   if (conf.plugins) {
     conf.plugins = conf.plugins
@@ -16,5 +15,8 @@ export default (conf: Configuration, env: 'development' | 'production', options:
       })
       .filter(Boolean) as WebpackPluginInstance[];
   }
+  if (env === 'production') {
+    conf.output = { ...conf.output, publicPath: './' };
+  }
   return conf;
 };