diff --git a/Classes/Domain/Repository/PostNodeDataRepository.php b/Classes/Domain/Repository/PostNodeDataRepository.php
index 97762bf..2af7896 100755
--- a/Classes/Domain/Repository/PostNodeDataRepository.php
+++ b/Classes/Domain/Repository/PostNodeDataRepository.php
@@ -71,7 +71,7 @@ protected function addSearchTermJoinConstraintsToQueryBuilder(QueryBuilder &$que
     {
         $queryBuilder
             ->andWhere('LOWER(n.properties) LIKE :searchTerm')
-            ->setParameter('searchTerm', '%' . $searchTerm . '%');
+            ->setParameter('searchTerm', '%' . strtolower($searchTerm) . '%');
     }
 
     /**