diff --git a/server/web3dbspider/services/events/factory.js b/server/web3dbspider/services/events/factory.js
index 56c2412..7b3a41c 100644
--- a/server/web3dbspider/services/events/factory.js
+++ b/server/web3dbspider/services/events/factory.js
@@ -1,3 +1,4 @@
+const utils = require('j7/utils');
 const events = {};
 
 async function internalAdd(clsName, modName) {