diff --git a/packages/ice/src/service/webpackServerCompiler/compiler.ts b/packages/ice/src/service/webpackServerCompiler/compiler.ts
index daeff1e9af..b49e8cbc5f 100644
--- a/packages/ice/src/service/webpackServerCompiler/compiler.ts
+++ b/packages/ice/src/service/webpackServerCompiler/compiler.ts
@@ -76,7 +76,7 @@ export class WebpackServerCompiler {
               sourcemap: options.sourcemap,
               define: options.define,
               // banner can only be string in transform mode
-              banner: options.banner.js,
+              banner: options.banner?.js,
               implementation: esbuild,
             },
           },