diff --git a/index.html b/index.html
index 2f9e814..005ade9 100644
--- a/index.html
+++ b/index.html
@@ -73,7 +73,7 @@
       <em>
         <p>TypeScript Asteroids by Ben Creech (<a href="https://github.com/bpcreech/typescript-asteroids">source</a>)</p>
           
-        <p>based Doug McInnes's original <a href="http://dougmcinnes.com/2010/05/12/html-5-asteroids/">JavaScript-based HTML5 Asteroids</a> (<a href="https://github.com/dmcinnes/HTML5-Asteroids">source</a>).</p>
+        <p>this is a TypeScript port of Doug McInnes's original <a href="http://dougmcinnes.com/2010/05/12/html-5-asteroids/">JavaScript-based HTML5 Asteroids</a> (<a href="https://github.com/dmcinnes/HTML5-Asteroids">source</a>).</p>
       </em>
     </small>