diff --git a/template/404.html b/template/404.html
new file mode 100644
index 0000000..964c0a2
--- /dev/null
+++ b/template/404.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta http-eqiv="content-type" content="text/html;charset=utf-8">
+    <title>Go by Example: Not Found</title>
+    <link rel=stylesheet href="site.css">
+  </head>
+  <script type="text/javascript">
+    var _gaq = _gaq || [];
+    _gaq.push(['_setAccount', 'UA-34996217-1']);
+    _gaq.push(['_trackPageview']);
+    (function() {
+      var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
+      ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
+      var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
+    })();
+  </script>
+  <body>
+    <div id="intro">
+      <h2>Go by Example</h2>
+      <p>Sorry, we couldn't find that!</p>
+    </div>
+  </body>
+</html>
diff --git a/tool/generate.go b/tool/generate.go
index 0537375..84dc408 100644
--- a/tool/generate.go
+++ b/tool/generate.go
@@ -239,6 +239,7 @@ func main() {
     ensureDir(siteDir)
     copyFile("template/site.css", siteDir+"/site.css")
     copyFile("template/favicon.ico", siteDir+"/favicon.ico")
+    copyFile("template/404.html", siteDir+"/404.html")
     chapters := parseChapters()
     renderIndex(chapters)
     renderChapters(chapters)
