diff --git a/tsup.config.ts b/tsup.config.ts
index 6f572cd6..a727d955 100644
--- a/tsup.config.ts
+++ b/tsup.config.ts
@@ -82,7 +82,7 @@ export default defineConfig(options => {
 'use strict'
 
 if (process.env.NODE_ENV === 'production') {
-  module.exports = require('./immer.cjs.production.min.js')
+  module.exports = require('./immer.cjs.production.js')
 } else {
   module.exports = require('./immer.cjs.development.js')
 }`