diff --git a/lib/private/Authentication/Token/DefaultTokenMapper.php b/lib/private/Authentication/Token/DefaultTokenMapper.php
index 64812dcaf80a1fe4fc3dd7fbffd51a247cc02a6a..35bb83b85f423e4aa99b786f0f7b971203613586 100644
--- a/lib/private/Authentication/Token/DefaultTokenMapper.php
+++ b/lib/private/Authentication/Token/DefaultTokenMapper.php
@@ -156,7 +156,7 @@ class DefaultTokenMapper extends Mapper {
 	public function deleteByName($name) {
 		$qb = $this->db->getQueryBuilder();
 		$qb->delete('authtoken')
-			->where($qb->expr()->eq('name', $qb->createNamedParameter($name, IQueryBuilder::PARAM_LOB), IQueryBuilder::PARAM_LOB));
+			->where($qb->expr()->eq('name', $qb->createNamedParameter($name), IQueryBuilder::PARAM_STR));
 		$qb->execute();
 	}