diff --git a/src/AddOn/AbstractAddOn.php b/src/AddOn/AbstractAddOn.php
index fc771bc..0347436 100644
--- a/src/AddOn/AbstractAddOn.php
+++ b/src/AddOn/AbstractAddOn.php
@@ -6,6 +6,13 @@
 
 interface AbstractAddOn extends \JsonSerializable
 {
+    /**
+     * The type of addon:
+     * container
+     * deployment
+     */
+    public function type(): string;
+
     /**
      * The Helper to call
      */