diff --git a/lib/response-stream.js b/lib/response-stream.js
index e11b2d3..bd748b7 100644
--- a/lib/response-stream.js
+++ b/lib/response-stream.js
@@ -47,10 +47,15 @@ var ResponseStream = module.exports = function (options) {
   });
 
   if (this.response) {
-    this._headers = this.response._headers = this.response._headers || {};
 
+    try {
+      this._headers = this.response.getHeaders() || {};
+    } catch (err) {
+      this._headers = this.response._headers = this.response._headers || {};
+    }
+      
     // Patch to node core
-    this.response._headerNames = this.response._headerNames || {};
+    this.response._headerNames = this.response._headerNames || {};  
 
     //
     // Proxy to emit "header" event