new file mode 100644
--- /dev/null
+++ b/templates/gitweb/notfound.tmpl
@@ -0,0 +1,19 @@
+{header}
+<title>Mercurial repositories index</title>
+</head>
+
+<body>
+
+<div class="page_header">
+<a href="http://www.selenic.com/mercurial/" title="Mercurial"><div
+ style="float:right;">Mercurial</div></a> Not found: {repo|escape}
+</div>
+
+<div class="page_body">
+The specified repository "{repo|escape}" is unknown, sorry.
+<br/>
+<br/>
+Please go back to the <a href="/">main repository list page</a>.
+</div>
+
+{footer}