diff --git a/src/main.js b/src/main.js
index 3a1f08c8..36d2d168 100644
--- a/src/main.js
+++ b/src/main.js
@@ -36,9 +36,8 @@ Vue.use(VueAnalytics, {
  * please remove it before going online ! ! !
  */
 if (process.env.NODE_ENV === 'production') {
-  import('../mock').then(({ mockXHR }) => {
-    mockXHR()
-  })
+  const { mockXHR } = require('../mock')
+  mockXHR()
 }
 
 Vue.use(Element, {