diff --git a/loopback/server/middleware/value-is-not.js b/loopback/server/middleware/value-is-not.js
index 388545a9f..09c4ac7a8 100644
--- a/loopback/server/middleware/value-is-not.js
+++ b/loopback/server/middleware/value-is-not.js
@@ -12,6 +12,7 @@ const modelsLocale = glob.sync(pathResolve, {}).map(f => {
     return [keyMap(model, locale), file.columns];
 }
 );
+const {models} = require('vn-loopback/server/server');
 const mapLocale = new Map(modelsLocale);
 
 module.exports = {
@@ -19,7 +20,6 @@ module.exports = {
     message: ({tagValue}, {__: $t}) =>
         $t('Field are invalid', {tag: tagValue}),
     handleError: ({method: verb, originalUrl, body, __: $t}) => {
-        const {models} = require('vn-loopback/server/server');
         let tag = null;
         let module = null;
         let moduleOriginal = null;