diff --git a/apps/user_ldap/lib/Migration/Version1120Date20210917155206.php b/apps/user_ldap/lib/Migration/Version1120Date20210917155206.php
index bca390441d70d..b7a9b81d6a001 100644
--- a/apps/user_ldap/lib/Migration/Version1120Date20210917155206.php
+++ b/apps/user_ldap/lib/Migration/Version1120Date20210917155206.php
@@ -129,7 +129,7 @@ protected function getSelectQuery(string $table): IQueryBuilder {
 		$qb = $this->dbc->getQueryBuilder();
 		$qb->select('owncloud_name', 'directory_uuid')
 			->from($table)
-			->where($qb->expr()->gt($qb->func()->octetLength('owncloud_name'), '64', IQueryBuilder::PARAM_INT));
+			->where($qb->expr()->gt($qb->func()->octetLength('owncloud_name'), $qb->createNamedParameter('64'), IQueryBuilder::PARAM_INT));
 		return $qb;
 	}
 
diff --git a/apps/user_ldap/lib/Migration/Version1141Date20220323143801.php b/apps/user_ldap/lib/Migration/Version1141Date20220323143801.php
index 84faee03b66c3..96883f4ea6cd6 100644
--- a/apps/user_ldap/lib/Migration/Version1141Date20220323143801.php
+++ b/apps/user_ldap/lib/Migration/Version1141Date20220323143801.php
@@ -51,7 +51,7 @@ public function preSchemaChange(IOutput $output, Closure $schemaClosure, array $
 			$qb = $this->dbc->getQueryBuilder();
 			$qb->select('ldap_dn')
 				->from($tableName)
-				->where($qb->expr()->gt($qb->func()->octetLength('ldap_dn'), '4000', IQueryBuilder::PARAM_INT));
+				->where($qb->expr()->gt($qb->func()->octetLength('ldap_dn'), $qb->createNamedParameter('4000'), IQueryBuilder::PARAM_INT));
 
 			$dnsTooLong = [];
 			$result = $qb->executeQuery();