diff --git a/lib/Parser.js b/lib/Parser.js
index bed817d..4e8c807 100644
--- a/lib/Parser.js
+++ b/lib/Parser.js
@@ -40,8 +40,6 @@ function Parser(stream, debug) {
   this._ignoreReadable = false;
   this.debug = debug;
 
-  this.setStream(stream);
-
   var self = this;
   this._cbReadable = function() {
     if (self._ignoreReadable)
@@ -51,12 +49,18 @@ function Parser(stream, debug) {
     else
       self._tryread();
   };
-  this._stream.on('readable', this._cbReadable);
+
+  this.setStream(stream);
+
   process.nextTick(this._cbReadable);
 }
 inherits(Parser, EventEmitter);
 
 Parser.prototype.setStream = function(stream) {
+  if (this._stream) {
+    this._stream.removeListener('readable', this._cbReadable);
+  }
+
   if (/^v0\.8\./.test(process.version)) {
     this._stream = (new ReadableStream()).wrap(stream);
 
@@ -66,6 +70,8 @@ Parser.prototype.setStream = function(stream) {
     stream._events.error.pop();
   } else
     this._stream = stream;
+
+  this._stream.on('readable', this._cbReadable);
 };
 
 Parser.prototype._tryread = function(n) {