diff --git a/bin/emulator.js b/bin/emulator.js
index 0a7f8ef..334a2b4 100644
--- a/bin/emulator.js
+++ b/bin/emulator.js
@@ -61,7 +61,7 @@ Emulator.prototype.stop = function (){
   if (this.thread) {
     threadKill(this.thread.pid);
   } else {
-    context.emit('close', 0);
+    this.emit('close', 0);
   }
 };