diff --git a/CHANGELOG.md b/CHANGELOG.md
index aca7cf75d..98ffbcedd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -116,6 +116,7 @@
 - [#3162](https://github.com/influxdata/telegraf/issues/3162): Fix parsing of SHM remotes in ntpq input
 - [#3149](https://github.com/influxdata/telegraf/issues/3149): Don't fail parsing zpool stats if pool health is UNAVAIL on FreeBSD.
 - [#2672](https://github.com/influxdata/telegraf/issues/2672): Fix NSQ input plugin when used with version 1.0.0-compat.
+- [#2523](https://github.com/influxdata/telegraf/issues/2523): Added CloudWatch metric constraint validation.
 
 ## v1.3.5 [2017-07-26]