diff --git a/poll/README.md b/poll/README.md
index dc57a0bee..8d1a8f987 100644
--- a/poll/README.md
+++ b/poll/README.md
@@ -1 +1 @@
-Source code for the blog post: 
+Source code for the blog post: https://golb.hplar.ch/2018/02/Real-time-polling-app.html