diff --git a/CHANGELOG.md b/CHANGELOG.md
index 20a8d9d05..1f5c9c06a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -92,6 +92,7 @@
 - [#3801](https://github.com/influxdata/telegraf/issues/3801): Fix panic in http_response on invalid regex.
 - [#3973](https://github.com/influxdata/telegraf/issues/3873): Fix socket_listener setting ReadBufferSize on tcp sockets.
 - [#1575](https://github.com/influxdata/telegraf/issues/1575): Add tag for target url to phpfpm input.
+- [#3868](https://github.com/influxdata/telegraf/issues/3868): Fix cannot unmarshal object error in DC/OS input.
 
 ## v1.5.3 [2018-03-14]