diff --git a/src/Service/CalendarService.php b/src/Service/CalendarService.php
index aed03785..269da54d 100644
--- a/src/Service/CalendarService.php
+++ b/src/Service/CalendarService.php
@@ -111,7 +111,9 @@ public function syncSources(CalendarProvider $provider): CalendarProvider
         }
         $existing = collection($provider->calendar_sources)->indexBy('provider_id')->toArray();
 
+        /** @var \App\Model\Table\CalendarProvidersTable */
         $this->CalendarProviders = $this->fetchTable('CalendarProviders');
+        /** @var \App\Model\Table\CalendarSourcesTable */
         $this->CalendarSources = $this->fetchTable('CalendarSources');
 
         $this->CalendarProviders->getConnection()->transactional(