diff --git a/platform/features/timeline/src/actions/TimelineColumnizer.js b/platform/features/timeline/src/actions/TimelineColumnizer.js
index 011e87df9e..92e54b1860 100644
--- a/platform/features/timeline/src/actions/TimelineColumnizer.js
+++ b/platform/features/timeline/src/actions/TimelineColumnizer.js
@@ -65,6 +65,7 @@ define([
      *
      * @param {DomainObject[]} domainObjects the objects to include
      *        in the exported data
+     * @param {Array} resources an array of `resources` extensions
      * @constructor
      * @memberof {platform/features/timeline}
      */