diff --git a/README.md b/README.md
index e78b46d..1e3ad73 100644
--- a/README.md
+++ b/README.md
@@ -54,6 +54,13 @@ Questions or Comments?
 Feel free to message me [on reddit](https://www.reddit.com/message/compose?to=cannawen&subject=metric%20units%20bot&message=I%20think%20your%20bot%20is) or [open a github issue](https://github.com/cannawen/metric_units_reddit_bot/issues/new)
 
 
+Contribute
+---
+Metric Units Bot is participating in [Hacktoberfest](https://hacktoberfest.digitalocean.com/)! [See a list of things we need help with](https://github.com/cannawen/metric_units_reddit_bot/issues?q=is%3Aissue+is%3Aopen+label%3Ahacktoberfest) and win free T-shirts!
+
+Feedback & code reviews are always welcome.
+
+
 License
 ---
 This source is distributed under GNU GPLv3
diff --git a/src/reply_maker.js b/src/reply_maker.js
index 57cffbc..5af3104 100644
--- a/src/reply_maker.js
+++ b/src/reply_maker.js
@@ -28,6 +28,8 @@ function formatReply(comment, conversions) {
     + " ^|"
     + " ^[" + source + "](https://github.com/cannawen/metric_units_reddit_bot)"
     + " ^|"
+    + " ^[" + transform("hacktoberfest") + "](https://github.com/cannawen/metric_units_reddit_bot/issues?q=is%3Aissue+is%3Aopen+label%3Ahacktoberfest)"
+    + " ^|"
     + " ^[" + transform("block") + "](https://np.reddit.com/message/compose?to=metric_units&subject=stop&message=If%20you%20would%20like%20to%20stop%20seeing%20this%20bot%27s%20comments%2C%20please%20send%20this%20private%20message%20with%20the%20subject%20%27stop%27.%20If%20you%20are%20a%20moderator%2C%20please%20go%20to%20https%3A%2F%2Fwww.reddit.com%2Fr%2F" + subreddit + "%2Fabout%2Fbanned%2F)"
     + " ^|"
     + " ^" + version;