diff --git a/config_example.json b/config_example.json
index 7c070264..78d1944c 100644
--- a/config_example.json
+++ b/config_example.json
@@ -1,6 +1,7 @@
 {
   "pool_id": 0,
   "eth_pool_support": 1,
+  "worker_num": 0,
   "bind_ip": "127.0.0.1",
   "hostname": "testpool.com",
   "db_storage_path": "CHANGEME",
diff --git a/lib/pool.js b/lib/pool.js
index 2599cc35..f979b52d 100644
--- a/lib/pool.js
+++ b/lib/pool.js
@@ -2327,7 +2327,7 @@ function getUniqueWorkerID(cb) {
 }
 
 if (cluster.isMaster) {
-    const numWorkers = require('os').cpus().length;
+    const numWorkers = global.config.worker_num ? global.config.worker_num : require('os').cpus().length;
     for (let i = 1; i <= numWorkers; ++ i) {
         minerCount[i] = [];
         global.config.ports.forEach(function (portData) {