diff --git a/index.html b/index.html
index a553f34..380224f 100644
--- a/index.html
+++ b/index.html
@@ -20,7 +20,7 @@
     <section>
       <h1>Source Map Visualization</h1>
       <p>This is a visualization of JavaScript/<wbr>CSS source map data, which is useful for debugging problems with
-        generated source maps. It's designed to be high-performance so it doesn't fall over with huge source maps.</p>
+        generated source maps. It's designed to be high-performance so it doesn't fall over with huge source maps. <a href="https://github.com/evanw/source-map-visualization">Find the sources on GitHub</a></p>
       <p>Drag and drop some files here or <button id="uploadFiles">Upload files</button> to get started. You can either
         drop a single JavaScript/<wbr>CSS file with an inline source map comment, or a JavaScript/<wbr>CSS file and a separate
         source map file together.</p>