diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9269fd416dfedb5e532a0fc53cbf3549f145eecc..5d2f93ffaca091b8d0cbf9d5289e5dcd9f43c3e8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
+* #170 Updating an abstract list-type property with a default value fails with
+  "unkown error".
 * #145 Documentation of importances and inheritance
 * Missing sources of the easy-unit dependency.