diff --git a/specification/indices/create/IndicesCreateRequest.ts b/specification/indices/create/IndicesCreateRequest.ts
index 93e202dd1e..5cdfea5049 100644
--- a/specification/indices/create/IndicesCreateRequest.ts
+++ b/specification/indices/create/IndicesCreateRequest.ts
@@ -71,6 +71,7 @@ export interface Request extends RequestBase {
      * - Field data types
      * - Mapping parameters
      * @doc_id mapping
+     * @aliases mapping
      */
     mappings?: TypeMapping
     /**