diff --git a/src/Psalm/Config.php b/src/Psalm/Config.php
index 4d1361c7b..9dbceddf3 100644
--- a/src/Psalm/Config.php
+++ b/src/Psalm/Config.php
@@ -567,7 +567,7 @@ final class Config
     public array $config_warnings = [];
 
     /** @internal */
-    private function __construct()
+    protected function __construct()
     {
         self::$instance = $this;
         $this->eventDispatcher = new EventDispatcher();