diff --git a/needle/needle-tests.ts b/needle/needle-tests.ts
index 7283aeaa13..24d9701b51 100644
--- a/needle/needle-tests.ts
+++ b/needle/needle-tests.ts
@@ -10,7 +10,7 @@ function Usage() {
     });
 
     // using streams
-    var out; // = fs.createWriteStream('logo.png');
+    var out: any; // = fs.createWriteStream('logo.png');
     needle.get('https://google.com/images/logo.png').pipe(out);
 }
 
@@ -31,7 +31,7 @@ function ResponsePipeline() {
     var stream = needle.get('https://backend.server.com/everything.html', options);
 
     stream.on('readable', function () {
-        var data;
+        var data: any;
         while (data = this.read()) {
             console.log(data.toString());
         }
diff --git a/needle/needle.d.ts b/needle/needle.d.ts
index f4c20408fd..741cf5fe3b 100644
--- a/needle/needle.d.ts
+++ b/needle/needle.d.ts
@@ -6,6 +6,8 @@
 /// <reference path="../node/node.d.ts" />
 
 declare module Needle {
+	interface ReadableStream extends NodeJS.ReadableStream {
+	}
 
     interface Callback {
         (error: Error, response: any, body: any): void;