diff --git a/src/fragments/lib/graphqlapi/js/mutate-data.mdx b/src/fragments/lib/graphqlapi/js/mutate-data.mdx
index 23732c1c2e6..c832c687942 100644
--- a/src/fragments/lib/graphqlapi/js/mutate-data.mdx
+++ b/src/fragments/lib/graphqlapi/js/mutate-data.mdx
@@ -114,6 +114,7 @@ import * as mutations from './graphql/mutations';
 
 const todoDetails = {
   id: 'some_id',
+//  _version: 'current_version', // add the "_version" field if your AppSync API has conflict detection (required for DataStore) enabled
   description: 'Updated description'
 };