diff --git a/CHANGELOG.md b/CHANGELOG.md
index a1b3367ba3f68ef01f0f26ee514ac6700308241f..ebed1c69bb08c7508e5c91674f2a6ed3fbe2c7f2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Added
 - Daily statistical data will now appear under the parameter selection list.
 - Data tables accordion shows a table for a secondary instantaneous value parameter data when a second parameter (that has data) is selected.
+- Retrieve data controls now show a radio button for secondary parameter data when appropriate.
 
 ### Changed
 - Data download component was converted to Vue.