diff --git a/lib/WebGUI/Wobject/EventsCalendar.pm b/lib/WebGUI/Wobject/EventsCalendar.pm
index 6c02472fb..fde8c5eba 100644
--- a/lib/WebGUI/Wobject/EventsCalendar.pm
+++ b/lib/WebGUI/Wobject/EventsCalendar.pm
@@ -420,7 +420,7 @@ sub www_view {
 			# get event information
 			my $query = "select * from EventsCalendar_event where ";
 			$query .= " wobjectId=".$_[0]->get("wobjectId")." and " unless ($_[0]->get("isMaster"));
-			$query .= " (endDate>=$monthStart or endDate<=$monthEnd) and (startDate>=$monthStart or startDate<=$monthEnd) order by startDate,endDate";
+			$query .= " (endDate>=$monthStart and endDate<=$monthEnd) and (startDate>=$monthStart and startDate<=$monthEnd) order by startDate,endDate";
 			my %events;
 			my %previous;
 			my $sth = WebGUI::SQL->read($query);