diff --git a/server/web3sign/metadata/Item.js b/server/web3sign/metadata/Item.js
index 376d474..c757049 100644
--- a/server/web3sign/metadata/Item.js
+++ b/server/web3sign/metadata/Item.js
@@ -1,7 +1,7 @@
 const assert = require('assert');
 const utils = require('j7/utils');
 const bcutils = require('j7/bcutils');
-const bchelper = require('common/bchelerp');
+const bchelper = require('common/bchelper');
 const basewrap = require('./basewrap');
 const factory = require('./factory');