diff --git a/Domain/Model/SelfManagedInterface.php b/Domain/Model/SelfManagedInterface.php
new file mode 100755
index 0000000..f79a927
--- /dev/null
+++ b/Domain/Model/SelfManagedInterface.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Ivoz\Core\Domain\Model;
+
+/**
+ * Prevent entity generator from modifying classes that implement this interface
+ */
+interface SelfManagedInterface
+{
+}