diff --git a/packages/plugin-vue/src/main.ts b/packages/plugin-vue/src/main.ts
index 3b8496b9..d6de9897 100644
--- a/packages/plugin-vue/src/main.ts
+++ b/packages/plugin-vue/src/main.ts
@@ -261,6 +261,7 @@ export async function transformMain(
       filename,
       {
         target: 'esnext',
+        charset: 'utf8',
         // #430 support decorators in .vue file
         // target can be overridden by esbuild config target
         ...options.devServer?.config.esbuild,