diff --git a/public/app/plugins/datasource/elasticsearch/types.ts b/public/app/plugins/datasource/elasticsearch/types.ts
index 63c0e715d83..0727a92088e 100644
--- a/public/app/plugins/datasource/elasticsearch/types.ts
+++ b/public/app/plugins/datasource/elasticsearch/types.ts
@@ -131,6 +131,7 @@ export interface ElasticsearchAnnotationQuery {
   query?: string;
   tagsField?: string;
   textField?: string;
+  // @deprecated index is deprecated and will be removed in the future
   index?: string;
 }