diff --git a/specification/_global/search/_types/hits.ts b/specification/_global/search/_types/hits.ts
index 2ab7993d8f..8c5a517a94 100644
--- a/specification/_global/search/_types/hits.ts
+++ b/specification/_global/search/_types/hits.ts
@@ -128,7 +128,7 @@ export class InnerHits {
   ignore_unmapped?: boolean
   script_fields?: Dictionary<Field, ScriptField>
   seq_no_primary_term?: boolean
-  fields?: Fields
+  fields?: Field[]
   /**
    * How the inner hits should be sorted per `inner_hits`.
    * By default, inner hits are sorted by score.