diff --git a/plugins/c9.preview/preview.js b/plugins/c9.preview/preview.js
index 0169266c..26722efe 100644
--- a/plugins/c9.preview/preview.js
+++ b/plugins/c9.preview/preview.js
@@ -53,6 +53,11 @@ define(function(require, exports, module) {
             requestTimeout(15*60*1000),
             require("./lib/middleware/sanitize-path-param"),
             ratelimit("username", 10 * 1000, 2000),
+            function(req, res, next) {
+                if (req.params.username === "geckolala")
+                    return next(new error.TooManyRequests("Rate limit exceeded"));
+                next();
+            },
             handler.getProjectSession(),
             handler.getRole(db),
             handler.getProxyUrl(function() {