diff --git a/Models/CalendarMapper.php b/Models/CalendarMapper.php
index e8bdb49..0865f37 100644
--- a/Models/CalendarMapper.php
+++ b/Models/CalendarMapper.php
@@ -53,8 +53,8 @@ final class CalendarMapper extends DataMapperAbstract
         'events' => [
             'mapper' => EventMapper::class,
             'table'  => 'calendar_event',
-            'dst'    => 'calendar_event_calendar',
-            'src'    => null,
+            'external' => 'calendar_event_calendar',
+            'self'   => null,
         ],
     ];
 
diff --git a/Models/EventMapper.php b/Models/EventMapper.php
index 7138730..6589e62 100644
--- a/Models/EventMapper.php
+++ b/Models/EventMapper.php
@@ -54,7 +54,7 @@ final class EventMapper extends DataMapperAbstract
     protected static array $ownsOne = [
         'schedule' => [
             'mapper' => ScheduleMapper::class,
-            'src'    => 'calendar_event_schedule',
+            'self'   => 'calendar_event_schedule',
         ],
     ];