diff --git a/lib/api.js b/lib/api.js
index 505505a..391110c 100644
--- a/lib/api.js
+++ b/lib/api.js
@@ -17,7 +17,6 @@ const io = require('socket.io')(server);
 
 let addressBase58Prefix = cnUtil.address_decode(new Buffer(global.config.pool.address));
 let threadName = "";
-let workerList = [];
 
 if (cluster.isMaster) {
     threadName = "(Master) ";