diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 5bddd2f..a7deb48 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -3,6 +3,7 @@
 * The tutorial(s) should work towards the completion of a small or large project in C.
 * The tutorial(s) should be place under the right section (i.e. books, articles, videos, etc.).
 * The tutorial(s) should not already exist within the repo.
+* If tutorial is ongoing mark with `[in-progress]` tag after title. (i.e. `Handmade Hero [In-progress] `)
 * If tutorial is a video series link directly to the playlist when possible. (i.e. [Let's Make: Dangerous Dave](https://www.youtube.com/playlist?list=PLSkJey49cOgTSj465v2KbLZ7LMn10bCF9))
 * For multi-part blog series that don't include a Table of Contents add each individual part under the title:
   ```