diff --git a/src/org/p2pvpn/gui/Calendar.java b/src/org/p2pvpn/gui/Calendar.java
index d58e766..69f01c4 100644
--- a/src/org/p2pvpn/gui/Calendar.java
+++ b/src/org/p2pvpn/gui/Calendar.java
@@ -70,7 +70,7 @@ public class Calendar implements CalendarListener {
 
     public void selectedDateChanged(CalendarSelectionEvent event) {
         LocalDate calendarDate = event.getSource().getSelectedDate();
-        if (calendarDate != null && event.getNewDate().equals(event.getOldDate())) {
+        if (calendarDate != null && event.isDuplicate()) {
             Date originalDate = (Date) inputField.getModel().getValue();
             Date date = Date.from(calendarDate.atStartOfDay(ZoneId.systemDefault()).toInstant());
             date.setHours(originalDate.getHours());