diff --git a/readme.md b/readme.md
index 4b6e27c1..c48719b0 100644
--- a/readme.md
+++ b/readme.md
@@ -429,6 +429,8 @@ const handle = app.getRequestHandler()
 
 app.prepare().then(() => {
   createServer((req, res) => {
+    // Be sure to pass `true` as the second argument to `url.parse`.
+    // This tells it to parse the query portion of the URL.
     const parsedUrl = parse(req.url, true)
     const { pathname, query } = parsedUrl