diff --git a/modules/zone/back/models/zone-closure.js b/modules/zone/back/models/zone-closure.js
index 33e43d791..d25d6f707 100644
--- a/modules/zone/back/models/zone-closure.js
+++ b/modules/zone/back/models/zone-closure.js
@@ -1,11 +1,11 @@
-const {models} = require('vn-loopback/server/server');
+const app = require('vn-loopback/server/server');
 
 module.exports = Self => {
     app.on('started', function() {
         let models = ['Zone', 'ZoneEvent', 'ZoneExclusion'];
 
         for (let modelName of models) {
-            let Model = models[modelName];
+            let Model = app.models[modelName];
 
             Model.observe('after save', doCalc);
             Model.observe('after delete', doCalc);