diff --git a/apps/dav/lib/CalDAV/CalDavBackend.php b/apps/dav/lib/CalDAV/CalDavBackend.php
index 709f625afb3a9..be0f591c8ab29 100644
--- a/apps/dav/lib/CalDAV/CalDavBackend.php
+++ b/apps/dav/lib/CalDAV/CalDavBackend.php
@@ -1372,8 +1372,8 @@ public function moveCalendarObject(int $sourceCalendarId, int $targetCalendarId,
 		$this->purgeProperties($sourceCalendarId, $objectId);
 		$this->updateProperties($targetCalendarId, $object['uri'], $object['calendardata'], $calendarType);
 
-		$this->addChange($sourceCalendarId, $object['uri'], 1, $calendarType);
-		$this->addChange($targetCalendarId, $object['uri'], 3, $calendarType);
+		$this->addChange($sourceCalendarId, $object['uri'], 3, $calendarType);
+		$this->addChange($targetCalendarId, $object['uri'], 1, $calendarType);
 
 		$object = $this->getCalendarObjectById($newPrincipalUri, $objectId);
 		// Calendar Object wasn't found - possibly because it was deleted in the meantime by a different client