diff --git a/docs/advanced.md b/docs/advanced.md
index 9e0fb231..09435b53 100644
--- a/docs/advanced.md
+++ b/docs/advanced.md
@@ -919,7 +919,6 @@ class UserType extends GraphQLType
     public function fields()
     {
         return [
-            
             // ...
             
             // JSON column containing all posts made by this user
@@ -935,6 +934,5 @@ class UserType extends GraphQLType
     }
 
     // ...
-
 }
 ```
diff --git a/src/Rebing/GraphQL/Support/SelectFields.php b/src/Rebing/GraphQL/Support/SelectFields.php
index dea88958..f1c480fc 100644
--- a/src/Rebing/GraphQL/Support/SelectFields.php
+++ b/src/Rebing/GraphQL/Support/SelectFields.php
@@ -139,7 +139,7 @@ protected static function handleFields(array $requestedFields, $parentType, arra
                 $customQuery = array_get($fieldObject->config, 'query');
 
                 // Check if the field is a relation that needs to be requested from the DB
-                $queryable = self::isQueryable($fieldObject);
+                $queryable = self::isQueryable($fieldObject->config);
 
                 // Pagination
                 if(is_a($parentType, PaginationType::class))