diff --git a/ui/ui.datepicker.js b/ui/ui.datepicker.js
index 75d35b1d5..142ce96d5 100644
--- a/ui/ui.datepicker.js
+++ b/ui/ui.datepicker.js
@@ -86,6 +86,7 @@ function Datepicker() {
 		yearRange: '-10:+10', // Range of years to display in drop-down,
 			// either relative to current year (-nn:+nn) or absolute (nnnn:nnnn)
 		changeFirstDay: true, // True to click on day name to change, false to remain as set
+		highlightWeek: false, // True to highlight the selected week
 		showOtherMonths: false, // True to show dates in other months, false to leave blank
 		showWeeks: false, // True to show week of the year, false to omit
 		calculateWeek: this.iso8601Week, // How to calculate the week of the year,