diff --git a/CHANGELOG.md b/CHANGELOG.md
index e8ff978..bd45bc3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 * [ENHANCEMENT] Add a health check to the Docker container ([#182](https://github.com/prometheus/statsd_exporter/pull/182))
 * [ENHANCEMENT] Allow inconsistent label sets ([#194](https://github.com/prometheus/statsd_exporter/pull/194))
 * [ENHANCEMENT] Add metric for count of events by action ([#193](https://github.com/prometheus/statsd_exporter/pull/193))
+* [ENHANCEMENT] Speed up sanitization of metric names ([#197](https://github.com/prometheus/statsd_exporter/pull/197))
 * [BUGFIX] Fix panic if a mapping resulted in an empty name ([#192](https://github.com/prometheus/statsd_exporter/pull/192))
 
 With #192, the count of events rejected because of negative counter increments has moved into the `statsd_exporter_events_error_total` metric, instead of being lumped in with the different kinds of successful events.