diff --git a/packages/@vuepress/test-utils/lib/createJestRunner.js b/packages/@vuepress/test-utils/lib/createJestRunner.js
index eedc38c89f..56f57e8e8e 100644
--- a/packages/@vuepress/test-utils/lib/createJestRunner.js
+++ b/packages/@vuepress/test-utils/lib/createJestRunner.js
@@ -6,15 +6,15 @@ const usedPorts = []
  * Run jest
  *
  * @param {array} jestArgs an array of Jest CLI options
- * @param {array} rawArgs the processed process.argv - contains '--inspect-brk' for debug
+ * @param {array} debug whether start with '--inspect-brk' or not
  */
 
-module.exports = function createJestRunner (jestArgs, rawArgs) {
+module.exports = function createJestRunner (jestArgs, debug) {
   return async function () {
     const execArgv = getChildProcessExecArgv()
-    const args = [...execArgv, ...jestArgs]
+    const args = [require.resolve('jest-cli/bin/jest'), ...execArgv, ...jestArgs]
+    if (debug) args.unshift('--inspect-brk')
     console.log(`running node with args: ${args.join(' ')}`)
-    args.unshift(...rawArgs, require.resolve('jest-cli/bin/jest'))
     await execa('node', args, {
       stdio: 'inherit'
     })
diff --git a/scripts/test.js b/scripts/test.js
index 8e4c10cef1..686ba37e64 100644
--- a/scripts/test.js
+++ b/scripts/test.js
@@ -6,6 +6,8 @@ const rawArgs = process.argv.slice(2)
 const args = minimist(rawArgs)
 
 let regex
+const debug = !!args['inspect-brk']
+
 if (args.p) {
   const packages = (args.p || args.package).split(',').join('|')
   regex = `.*@vuepress/(${packages}|plugin-(${packages}))/.*\\.spec\\.(js|ts)$`
@@ -17,7 +19,7 @@ const jestRunner = createJestRunner([
   '--config', 'scripts/jest.config.js',
   '--runInBand',
   ...(regex ? [regex] : [])
-], rawArgs)
+], debug)
 
 // ensure the basic temp files were generated
 createApp({