diff --git a/vite.config.ts b/vite.config.ts
index d8277d6..13ea05a 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -9,10 +9,11 @@ export default defineConfig({
     lib: {
       entry: 'src/index.ts',
       formats: ['es'],
-      fileName: 'index.js'
+      fileName: 'index'
     },
     rollupOptions: {
       output: {
+        entryFileNames: 'index.js',
         plugins: [
           terser(),
           license({