diff --git a/packages/next/src/build/webpack/loaders/next-barrel-loader.ts b/packages/next/src/build/webpack/loaders/next-barrel-loader.ts
index a41db2082837..154f353da60c 100644
--- a/packages/next/src/build/webpack/loaders/next-barrel-loader.ts
+++ b/packages/next/src/build/webpack/loaders/next-barrel-loader.ts
@@ -18,8 +18,8 @@
  *
  *   export const __next_private_export_map__ = '[["a","./a","a"],["b","./b","b"],["c","./c","c"],...]'
  *
- *   format: '["<imported identifier>", "<import path>", "<exported name>"]'
- *   e.g.: import { a as b } from './module-a' => '["b", "./module-a", "a"]'
+ *   format: '["<barrel export name>", "<source module path>", "<source export name>"]'
+ *   e.g.: export { a as b } from './module-a' => '["b", "./module-a", "a"]'
  *
  * The export map, generated by SWC, is a JSON that represents the exports of
  * that module, their original file, and their original name (since you can do