diff --git a/lms/www/batches/batch.js b/lms/www/batches/batch.js
index 155b762d..3ac054d2 100644
--- a/lms/www/batches/batch.js
+++ b/lms/www/batches/batch.js
@@ -812,7 +812,7 @@ const set_calendar_range = (calendar, events) => {
 		);
 		$(".calendar-range").text(`${calendar_date}`);
 
-		if (moment(events[0].date).isSameOrBefore(moment(calendar)))
+		if (moment(calendar_date).isSameOrBefore(moment(events[0].date)))
 			$("#prev-week").hide();
 		else $("#prev-week").show();