diff --git a/lib/hub/agent.js b/lib/hub/agent.js
index 3eb70551..7032e7d4 100644
--- a/lib/hub/agent.js
+++ b/lib/hub/agent.js
@@ -115,6 +115,13 @@ Agent.prototype.dispatch = function (urls) {
     this.next();
 };
 
+Agent.prototype.unload = function () {
+    this.connected = false;
+    this.seen = 0;
+    this.waiting = false;
+    this.emit("disconnected");
+};
+
 Agent.prototype.ping = function () {
     this.connected = true;
     this.seen = new Date();