diff --git a/lib/Sharing/DeckShareProvider.php b/lib/Sharing/DeckShareProvider.php
index 483e68557..0c2ec3f4f 100644
--- a/lib/Sharing/DeckShareProvider.php
+++ b/lib/Sharing/DeckShareProvider.php
@@ -516,6 +516,7 @@ public function getSharesInFolder($userId, Folder $node, $reshares, $shallow = t
 		}
 
 		$qb->innerJoin('s', 'filecache', 'f', $qb->expr()->eq('s.file_source', 'f.fileid'));
+		$qb->andWhere($qb->expr()->eq('f.storage', $qb->createNamedParameter($node->getMountPoint()->getNumericStorageId(), IQueryBuilder::PARAM_INT)));
 		if ($shallow) {
 			$qb->andWhere($qb->expr()->eq('f.parent', $qb->createNamedParameter($node->getId())));
 		} else {