diff --git a/CHANGES b/CHANGES
index 588e7f5b7..52bdf1a8a 100644
--- a/CHANGES
+++ b/CHANGES
@@ -6,6 +6,7 @@ Pint Changelog
 
 - Fix custom formatter needing the registry object. (PR #2011)
 - Support python 3.9 following difficulties installing with NumPy 2. (PR #2019)
+- Fix default formatting of dimensionless unit issue. (PR #2012)
 
 0.24 (2024-06-07)
 -----------------