diff --git a/packages/next/jest.js b/packages/next/jest.js
index c0451a2246bd..adeca0379d65 100644
--- a/packages/next/jest.js
+++ b/packages/next/jest.js
@@ -1,4 +1 @@
-function interopDefault(mod) {
-  return mod.default || mod
-}
-module.exports = interopDefault(require('./dist/build/jest/jest'))
+module.exports = require('./dist/build/jest/jest')
diff --git a/packages/next/taskfile.js b/packages/next/taskfile.js
index 58e0e94f4c8a..b912e726ff40 100644
--- a/packages/next/taskfile.js
+++ b/packages/next/taskfile.js
@@ -1763,6 +1763,7 @@ export async function compile(task, opts) {
       'bin',
       'server',
       'nextbuild',
+      'nextbuildjest',
       'nextbuildstatic',
       'pages',
       'lib',
@@ -1816,13 +1817,23 @@ export async function server(task, opts) {
 export async function nextbuild(task, opts) {
   await task
     .source(opts.src || 'build/**/*.+(js|ts|tsx)', {
-      ignore: ['**/fixture/**', '**/tests/**'],
+      ignore: ['**/fixture/**', '**/tests/**', '**/jest/**'],
     })
     .swc('server', { dev: opts.dev })
     .target('dist/build')
   notify('Compiled build files')
 }
 
+export async function nextbuildjest(task, opts) {
+  await task
+    .source(opts.src || 'build/jest/**/*.+(js|ts|tsx)', {
+      ignore: ['**/fixture/**', '**/tests/**'],
+    })
+    .swc('server', { dev: opts.dev, interopClientDefaultExport: true })
+    .target('dist/build/jest')
+  notify('Compiled build/jest files')
+}
+
 export async function client(task, opts) {
   await task
     .source(opts.src || 'client/**/*.+(js|ts|tsx)')
@@ -1903,6 +1914,7 @@ export default async function (task) {
   await task.watch('pages/**/*.+(js|ts|tsx)', 'pages', opts)
   await task.watch('server/**/*.+(js|ts|tsx)', 'server', opts)
   await task.watch('build/**/*.+(js|ts|tsx)', 'nextbuild', opts)
+  await task.watch('build/jest/**/*.+(js|ts|tsx)', 'nextbuildjest', opts)
   await task.watch('export/**/*.+(js|ts|tsx)', 'nextbuildstatic', opts)
   await task.watch('client/**/*.+(js|ts|tsx)', 'client', opts)
   await task.watch('lib/**/*.+(js|ts|tsx)', 'lib', opts)