diff --git a/lib/wallet/server.js b/lib/wallet/server.js
index 9f7fd318..4e13da2f 100644
--- a/lib/wallet/server.js
+++ b/lib/wallet/server.js
@@ -7,6 +7,7 @@
 'use strict';
 
 const WalletDB = require('./walletdb');
+const WorkerPool = require('../workers/workerpool');
 const Config = require('../node/config');
 const Logger = require('../node/logger');
 const Client = require('./client');