diff --git a/CHANGELOG/CHANGELOG-3.5.md b/CHANGELOG/CHANGELOG-3.5.md
index 79cfd4512..3216adb41 100644
--- a/CHANGELOG/CHANGELOG-3.5.md
+++ b/CHANGELOG/CHANGELOG-3.5.md
@@ -8,6 +8,7 @@ Previous change logs can be found at [CHANGELOG-3.4](https://github.com/etcd-io/
 
 ### Package `clientv3`
 - Add [client backoff and retry config options](https://github.com/etcd-io/etcd/pull/17363).
+- [Ignore SetKeepAlivePeriod errors on OpenBSD](https://github.com/etcd-io/etcd/pull/17387).
 
 <hr>