diff --git a/CHANGELOG.md b/CHANGELOG.md
index 432c07b95..464a31f68 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -36,6 +36,7 @@
 - [#3106](https://github.com/influxdata/telegraf/pull/3106): Add configurable separator for metrics and fields in opentsdb output.
 - [#1692](https://github.com/influxdata/telegraf/pull/1692): Add support for the rollbar occurrence webhook event.
 - [#3160](https://github.com/influxdata/telegraf/pull/3160): Add Wavefront output plugin.
+- [#3281](https://github.com/influxdata/telegraf/pull/3281): Add extra wired tiger cache metrics to mongodb input.
 
 ### Bugfixes