diff --git a/CHANGELOG.md b/CHANGELOG.md
index 306b83002..6b1bb3b66 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -37,6 +37,7 @@
 - [#6917](https://github.com/influxdata/telegraf/pull/6917): Add server_name override for x509_cert plugin.
 - [#6921](https://github.com/influxdata/telegraf/pull/6921): Add udp internal metrics for the statsd input.
 - [#6914](https://github.com/influxdata/telegraf/pull/6914): Add replica set tag to mongodb input.
+- [#6935](https://github.com/influxdata/telegraf/pull/6935): Add counters for merged reads and writes to diskio input.
 
 #### Bugfixes