diff --git a/Classes/Package.php b/Classes/Package.php
index 7f7f1b8..5a87b0f 100644
--- a/Classes/Package.php
+++ b/Classes/Package.php
@@ -21,7 +21,7 @@ use Neos\Flow\Package\Package as BasePackage;
  */
 class Package extends BasePackage
 {
-    const CONFIGURATION_TYPE_VALIDATION = 'Validation';
+    public const CONFIGURATION_TYPE_VALIDATION = 'Validation';
 
     /**
      * @param Bootstrap $bootstrap