diff --git a/GraphQL/Resolver/Field/QueryResolver.php b/GraphQL/Resolver/Field/QueryResolver.php
index 5fd15163..a14113d1 100644
--- a/GraphQL/Resolver/Field/QueryResolver.php
+++ b/GraphQL/Resolver/Field/QueryResolver.php
@@ -82,7 +82,7 @@ public function resolve($value, $args, $context, ResolveInfo $info) {
             case 'get':
                 return $this->ifAccess(empty($args['id']) ?
                     $contentManager->create($domain, $type) :
-                    $contentManager->get($domain, $type, $args['id'], $args['includeDeleted'])
+                    $contentManager->get($domain, $type, $args['id'], $args['includeDeleted'] ?? false)
                 );
             case 'find':
                 return $contentManager->find(