diff --git a/CHANGELOG.md b/CHANGELOG.md
index 840fc67..041c065 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [unreleased]
 
+### Changed
+
+- Improve error message from syn in generator.
+
 ## [0.3.1] - 2025-04-11
 
 ### Changed