diff --git a/lib/model-helper.js b/lib/model-helper.js
index 2b85101..945eeb5 100644
--- a/lib/model-helper.js
+++ b/lib/model-helper.js
@@ -105,7 +105,8 @@ var modelHelper = module.exports = {
     out[name] = {
       id: name,
       properties: properties,
-      required: required
+      required: required,
+      additionalProperties: def.settings.additionalProperties
     };
 
     // Generate model definitions for related models