diff --git a/colab/super_archives/templates/message-thread.html b/colab/super_archives/templates/message-thread.html
index 93028c5..2065bd7 100644
--- a/colab/super_archives/templates/message-thread.html
+++ b/colab/super_archives/templates/message-thread.html
@@ -59,7 +59,7 @@
     console.debug('trying to vote');
     $btn.button('loading');
     $ajax = $.ajax({
-      url: "archives/message/" + msg_id + "/vote",
+      url: "/archives/message/" + msg_id + "/vote",
       type: method,
       context: $btn.get(0),
       beforeSend: function(xhr, settings) {
--
libgit2 0.21.2