diff --git a/src/routes/graphs.js b/src/routes/graphs.js
index 7a3c51e68..0f1136f4e 100644
--- a/src/routes/graphs.js
+++ b/src/routes/graphs.js
@@ -7,7 +7,8 @@ exports = module.exports = {
 var middleware = require('../middleware/index.js'),
     url = require('url');
 
-var graphiteProxy = middleware.proxy(url.parse('http://127.0.0.1:8417'));
+// for testing locally: curl 'http://127.0.0.1:8417/graphite-web/render?format=json&from=-1min&target=absolute(collectd.localhost.du-docker.capacity-usage)'
+const graphiteProxy = middleware.proxy(url.parse('http://127.0.0.1:8417'));
 
 function getGraphs(req, res, next) {
     var parsedUrl = url.parse(req.url, true /* parseQueryString */);