diff --git a/packages/rekapager-doctrine-orm-adapter/src/QueryBuilderAdapter.php b/packages/rekapager-doctrine-orm-adapter/src/QueryBuilderAdapter.php
index 9b746c1..be34ef7 100644
--- a/packages/rekapager-doctrine-orm-adapter/src/QueryBuilderAdapter.php
+++ b/packages/rekapager-doctrine-orm-adapter/src/QueryBuilderAdapter.php
@@ -278,6 +278,7 @@ private function getSortOrder(): array
                 $exploded = explode(' ', $part);
                 $field = $exploded[0];
                 $direction = $exploded[1] ?? 'ASC';
+                $direction = strtoupper($direction);
 
                 if (!\in_array($direction, ['ASC', 'DESC'], true)) {
                     throw new \LogicException('Invalid direction');