diff --git a/src/Container.php b/src/Container.php
index 233ceff..bbd0b93 100644
--- a/src/Container.php
+++ b/src/Container.php
@@ -854,7 +854,7 @@ private function resolveArgs(array $defaultArgs, array $args, $instance = null)
      * @param array $args Additional arguments to pass to the constructor.
      * @return object Returns an object instance.
      */
-    private function createInstance($nid, array $args)
+    protected function createInstance($nid, array $args)
     {
         $rule = $this->makeRule($nid);