diff --git a/routes/renders.js b/routes/renders.js
index 52456cd..18deaa9 100644
--- a/routes/renders.js
+++ b/routes/renders.js
@@ -43,8 +43,8 @@ router.get('/:type/:uuid.:ext?', function(req, res) {
     return;
   }
 
-  // strip dashes
-  uuid = uuid.replace(/-/g, "");
+  // strip dashes, to lowercase
+  uuid = uuid.replace(/-/g, "").toLowerCase();
 
   try {
     helpers.get_render(uuid, scale, helm, body, function(err, status, hash, image) {