diff --git a/modules/default/calendar/calendarfetcher.js b/modules/default/calendar/calendarfetcher.js
index d9106853..bf417afe 100644
--- a/modules/default/calendar/calendarfetcher.js
+++ b/modules/default/calendar/calendarfetcher.js
@@ -173,14 +173,14 @@ var CalendarFetcher = function(url, reloadInterval, excludedEvents, maximumEntri
 
 					if (typeof event.rrule != "undefined" && !isFacebookBirthday) {
 						var rule = event.rrule;
-						
+
 						// can cause problems with e.g. birthdays before 1900
-						if(rule.origOptions && rule.origOptions.dtstart && rule.origOptions.dtstart.getFullYear() < 1900 || 
+						if(rule.origOptions && rule.origOptions.dtstart && rule.origOptions.dtstart.getFullYear() < 1900 ||
 							rule.options && rule.options.dtstart && rule.options.dtstart.getFullYear() < 1900){
 							rule.origOptions.dtstart.setYear(1900);
 							rule.options.dtstart.setYear(1900);
 						}
-						
+
 						var dates = rule.between(today, future, true, limitFunction);
 
 						for (var d in dates) {