diff --git a/src/Service/Search/Schema2xFieldMapper.php b/src/Service/Search/Schema2xFieldMapper.php
index dc6970d..8ed7472 100644
--- a/src/Service/Search/Schema2xFieldMapper.php
+++ b/src/Service/Search/Schema2xFieldMapper.php
@@ -104,7 +104,7 @@ public function getSortField(Criteria $criteria): string
             case $criteria instanceof Name:
                 return 'sp_name';
             case $criteria instanceof Headline:
-                return 'sp_title';
+                return 'sp_sortvalue';
             case $criteria instanceof Date:
                 return 'sp_date';
             case $criteria instanceof Natural: