diff --git a/index.js b/index.js
index 44c965f..f651bc5 100644
--- a/index.js
+++ b/index.js
@@ -27,15 +27,18 @@ function rpc(opt)   {
 
     this.__connCbs = [];
     this.__exchangeCbs = [];
+
+    rpc.__instanceCount++;
 }
 
+rpc.__instanceCount = 0;
+
 /**
  * generate unique name for new queue
  * @returns {string}
  */
-
 rpc.prototype.generateQueueName = function(type)    {
-    return /*'njsListener:' +*/ os.hostname() + ':pid' + process.pid + ':' + type;
+    return /*'njsListener:' +*/ os.hostname() + ':pid' + process.pid + ':' + rpc.__instanceCount + ':' + type;
 }