diff --git a/package.json b/package.json
index da802e1..5c58208 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "tor-router",
-  "version": "3.0.4",
+  "version": "3.0.5",
   "main": "src/index.js",
   "repository": "git@github.com:znetstar/tor-router.git",
   "author": "Zachary Boyd <zachary@zacharyboyd.nyc>",
@@ -10,7 +10,7 @@
     "tor-router": "bin/tor-router"
   },
   "scripts": {
-    "start": "bin/tor-router -l debug -s -d -j 3",
+    "start": "bin/tor-router -l debug -s -d -j 1",
     "test": "mocha test/test.js"
   },
   "devDependencies": {
diff --git a/src/ControlServer.js b/src/ControlServer.js
index 589e7bf..5486fac 100644
--- a/src/ControlServer.js
+++ b/src/ControlServer.js
@@ -23,7 +23,7 @@ class ControlServer {
 		socket.on('createDNSServer', this.createDNSServer.bind(this));
 
 		socket.on('createInstances', (instances, callback) => { this.torPool.create(instances, (error, instances) => {
-			callback(error)
+			callback && callback(error)
 		}); });
 		socket.on('removeInstances', (instances, callback) => { this.torPool.remove(instances, callback); });
 		socket.on('newIps', () => { this.torPool.new_ips(); });