diff --git a/CHANGELOG.md b/CHANGELOG.md
index 59421276b32..01378e9b20f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 - Make sure `contain-*` utility variables resolve to a valid value ([#13521](https://github.com/tailwindlabs/tailwindcss/pull/13521))
+- Keep underscores in dashed-idents ([#13538](https://github.com/tailwindlabs/tailwindcss/pull/13538))
 
 ### Changed