diff --git a/src/GraphQL/Helper.php b/src/GraphQL/Helper.php
index 9cfdb9c7..2814bb2c 100644
--- a/src/GraphQL/Helper.php
+++ b/src/GraphQL/Helper.php
@@ -37,7 +37,7 @@ public static function addJoins(&$list, $filter, $columns, &$mappingTable = [])
         foreach ($parts as $key => $value) {
             foreach ($columns as $column) {
                 $attributes = $column['attributes'];
-                
+
                 if (isset($attributes['attribute'])) {
                     $name = $attributes['attribute'];