diff --git a/lib/Db/FsEventMapper.php b/lib/Db/FsEventMapper.php
index 96ba16a0..6d9c105f 100644
--- a/lib/Db/FsEventMapper.php
+++ b/lib/Db/FsEventMapper.php
@@ -63,8 +63,8 @@ public function deleteByContent(\OCA\ContextChat\Type\FsEventType $type, string
 		$qb = $this->db->getQueryBuilder();
 		$qb->delete($this->getTableName())
 			->where($qb->expr()->eq('type', $qb->createNamedParameter($type->value)))
-			->andWhere($qb->expr()->eq('userId', $qb->createNamedParameter($ownerId)))
-			->andWhere($qb->expr()->eq('nodeId', $qb->createNamedParameter($nodeId, IQueryBuilder::PARAM_INT)))
+			->andWhere($qb->expr()->eq('user_id', $qb->createNamedParameter($ownerId)))
+			->andWhere($qb->expr()->eq('node_id', $qb->createNamedParameter($nodeId, IQueryBuilder::PARAM_INT)))
 		;
 
 		return $qb->executeStatement();