diff --git a/js/models/core/Wallet.js b/js/models/core/Wallet.js
index efba503dc..afdb85462 100644
--- a/js/models/core/Wallet.js
+++ b/js/models/core/Wallet.js
@@ -4,7 +4,6 @@ var EventEmitter = require('events').EventEmitter;
 var async = require('async');
 var preconditions = require('preconditions').singleton();
 var util = require('util');
-var microtime = require('microtime');
 
 var bitcore = require('bitcore');
 var bignum = bitcore.Bignum;