diff --git a/CHANGES.md b/CHANGES.md
index 3283fe8..8ffe6ac 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,7 +1,7 @@
 2.0.0
 -----
 
-- Prepare release (@mbarbin)
+- Prepare release (#21, @mbarbin)
   - Upgrade to `ocamlformat.0.26.2`.
   - Fmt the code
   - Add CI badge to README