diff --git a/output/schema/schema.json b/output/schema/schema.json
index 0f09f55d0d..45d4646be2 100644
--- a/output/schema/schema.json
+++ b/output/schema/schema.json
@@ -91096,6 +91096,18 @@
             }
           }
         },
+        {
+          "description": "Default settings, included when the request's `include_default` is `true`.",
+          "name": "defaults",
+          "required": false,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "IndexSettings",
+              "namespace": "indices._types"
+            }
+          }
+        },
         {
           "name": "data_stream",
           "required": false,
diff --git a/output/typescript/types.ts b/output/typescript/types.ts
index 194376884e..e2839b5ecc 100644
--- a/output/typescript/types.ts
+++ b/output/typescript/types.ts
@@ -9062,6 +9062,7 @@ export interface IndicesIndexState {
   aliases?: Record<IndexName, IndicesAlias>
   mappings?: MappingTypeMapping
   settings?: IndicesIndexSettings
+  defaults?: IndicesIndexSettings
   data_stream?: DataStreamName
 }
 
diff --git a/specification/indices/_types/IndexState.ts b/specification/indices/_types/IndexState.ts
index 874ceea5fb..ca1d6d4f41 100644
--- a/specification/indices/_types/IndexState.ts
+++ b/specification/indices/_types/IndexState.ts
@@ -27,5 +27,7 @@ export class IndexState {
   aliases?: Dictionary<IndexName, Alias>
   mappings?: TypeMapping
   settings?: IndexSettings
+  /** Default settings, included when the request's `include_default` is `true`. */
+  defaults?: IndexSettings
   data_stream?: DataStreamName
 }