diff --git a/apps/files_sharing/api/sharees.php b/apps/files_sharing/api/sharees.php
index 24b51d7afe..3ddf54c3ea 100644
--- a/apps/files_sharing/api/sharees.php
+++ b/apps/files_sharing/api/sharees.php
@@ -353,7 +353,7 @@ class Sharees {
 		$this->limit = (int) $perPage;
 		$this->offset = $perPage * ($page - 1);
 
-		return $this->searchSharees(strtolower($search), $itemType, $shareTypes, $page, $perPage);
+		return $this->searchSharees($search, $itemType, $shareTypes, $page, $perPage);
 	}
 
 	/**