diff --git a/js/server/modules/org/arangodb/foxx/schema.js b/js/server/modules/org/arangodb/foxx/schema.js
index 72cdb451fd..c9e6f3a8f0 100644
--- a/js/server/modules/org/arangodb/foxx/schema.js
+++ b/js/server/modules/org/arangodb/foxx/schema.js
@@ -66,7 +66,7 @@ function toJSONSchema(id, schema) {
     return jsonSchema;
   }
 
-  _.each(schema.children, function (attributeDescription, attributeName) {
+  _.each(description.children, function (attributeDescription, attributeName) {
     var attributeSchema = {type: attributeDescription.type},
       rules = attributeDescription.rules,
       flags = attributeDescription.flags;