diff --git a/apps/dav/lib/CalDAV/CalDavBackend.php b/apps/dav/lib/CalDAV/CalDavBackend.php
index a948c54ad5829..df206b4ca577a 100644
--- a/apps/dav/lib/CalDAV/CalDavBackend.php
+++ b/apps/dav/lib/CalDAV/CalDavBackend.php
@@ -1847,7 +1847,7 @@ public function search(array $calendarInfo, $pattern, array $searchProperties,
 
 		// only return public items for shared calendars for now
 		if (isset($calendarInfo['{http://owncloud.org/ns}owner-principal']) === false || $calendarInfo['principaluri'] !== $calendarInfo['{http://owncloud.org/ns}owner-principal']) {
-			$innerQuery->andWhere($innerQuery->expr()->eq('c.classification',
+			$outerQuery->andWhere($outerQuery->expr()->eq('c.classification',
 				$outerQuery->createNamedParameter(self::CLASSIFICATION_PUBLIC)));
 		}