diff --git a/output/openapi/elasticsearch-openapi.json b/output/openapi/elasticsearch-openapi.json
index 692f131b29..06336cb605 100644
--- a/output/openapi/elasticsearch-openapi.json
+++ b/output/openapi/elasticsearch-openapi.json
@@ -88372,33 +88372,20 @@
             ]
           },
           "downsampling": {
-            "description": "The downsampling configuration to execute for the managed backing index after rollover.",
-            "allOf": [
-              {
-                "$ref": "#/components/schemas/indices._types.DataStreamLifecycleDownsampling"
-              }
-            ]
-          },
-          "enabled": {
-            "description": "If defined, it turns data stream lifecycle on/off (`true`/`false`) for this data stream. A data stream lifecycle\nthat's disabled (enabled: `false`) will have no effect on the data stream.",
-            "default": true,
-            "type": "boolean"
-          }
-        }
-      },
-      "indices._types.DataStreamLifecycleDownsampling": {
-        "type": "object",
-        "properties": {
-          "rounds": {
             "description": "The list of downsampling rounds to execute as part of this downsampling configuration",
             "type": "array",
             "items": {
               "$ref": "#/components/schemas/indices._types.DownsamplingRound"
             }
+          },
+          "enabled": {
+            "description": "If defined, it turns data stream lifecycle on/off (`true`/`false`) for this data stream. A data stream lifecycle\nthat's disabled (enabled: `false`) will have no effect on the data stream.",
+            "default": true,
+            "type": "boolean"
           }
         },
         "required": [
-          "rounds"
+          "downsampling"
         ]
       },
       "indices._types.DownsamplingRound": {
diff --git a/output/openapi/elasticsearch-serverless-openapi.json b/output/openapi/elasticsearch-serverless-openapi.json
index d921f60720..fca036fb72 100644
--- a/output/openapi/elasticsearch-serverless-openapi.json
+++ b/output/openapi/elasticsearch-serverless-openapi.json
@@ -60723,33 +60723,20 @@
             ]
           },
           "downsampling": {
-            "description": "The downsampling configuration to execute for the managed backing index after rollover.",
-            "allOf": [
-              {
-                "$ref": "#/components/schemas/indices._types.DataStreamLifecycleDownsampling"
-              }
-            ]
-          },
-          "enabled": {
-            "description": "If defined, it turns data stream lifecycle on/off (`true`/`false`) for this data stream. A data stream lifecycle\nthat's disabled (enabled: `false`) will have no effect on the data stream.",
-            "default": true,
-            "type": "boolean"
-          }
-        }
-      },
-      "indices._types.DataStreamLifecycleDownsampling": {
-        "type": "object",
-        "properties": {
-          "rounds": {
             "description": "The list of downsampling rounds to execute as part of this downsampling configuration",
             "type": "array",
             "items": {
               "$ref": "#/components/schemas/indices._types.DownsamplingRound"
             }
+          },
+          "enabled": {
+            "description": "If defined, it turns data stream lifecycle on/off (`true`/`false`) for this data stream. A data stream lifecycle\nthat's disabled (enabled: `false`) will have no effect on the data stream.",
+            "default": true,
+            "type": "boolean"
           }
         },
         "required": [
-          "rounds"
+          "downsampling"
         ]
       },
       "indices._types.DownsamplingRound": {
diff --git a/output/schema/schema.json b/output/schema/schema.json
index 923aee4294..2d4af13d0c 100644
--- a/output/schema/schema.json
+++ b/output/schema/schema.json
@@ -149241,14 +149241,17 @@
           }
         },
         {
-          "description": "The downsampling configuration to execute for the managed backing index after rollover.",
+          "description": "The list of downsampling rounds to execute as part of this downsampling configuration",
           "name": "downsampling",
-          "required": false,
+          "required": true,
           "type": {
-            "kind": "instance_of",
-            "type": {
-              "name": "DataStreamLifecycleDownsampling",
-              "namespace": "indices._types"
+            "kind": "array_of",
+            "value": {
+              "kind": "instance_of",
+              "type": {
+                "name": "DownsamplingRound",
+                "namespace": "indices._types"
+              }
             }
           }
         },
@@ -149268,31 +149271,6 @@
       ],
       "specLocation": "indices/_types/DataStreamLifecycle.ts#L25-L45"
     },
-    {
-      "kind": "interface",
-      "name": {
-        "name": "DataStreamLifecycleDownsampling",
-        "namespace": "indices._types"
-      },
-      "properties": [
-        {
-          "description": "The list of downsampling rounds to execute as part of this downsampling configuration",
-          "name": "rounds",
-          "required": true,
-          "type": {
-            "kind": "array_of",
-            "value": {
-              "kind": "instance_of",
-              "type": {
-                "name": "DownsamplingRound",
-                "namespace": "indices._types"
-              }
-            }
-          }
-        }
-      ],
-      "specLocation": "indices/_types/DataStreamLifecycleDownsampling.ts#L22-L27"
-    },
     {
       "kind": "interface",
       "name": {
diff --git a/output/typescript/types.ts b/output/typescript/types.ts
index 8c95fa5b9e..f24a80b56e 100644
--- a/output/typescript/types.ts
+++ b/output/typescript/types.ts
@@ -11882,14 +11882,10 @@ export interface IndicesDataStreamIndex {
 
 export interface IndicesDataStreamLifecycle {
   data_retention?: Duration
-  downsampling?: IndicesDataStreamLifecycleDownsampling
+  downsampling: IndicesDownsamplingRound[]
   enabled?: boolean
 }
 
-export interface IndicesDataStreamLifecycleDownsampling {
-  rounds: IndicesDownsamplingRound[]
-}
-
 export interface IndicesDataStreamLifecycleRolloverConditions {
   min_age?: Duration
   max_age?: string
diff --git a/specification/indices/_types/DataStreamLifecycle.ts b/specification/indices/_types/DataStreamLifecycle.ts
index a9af498a1d..938db41460 100644
--- a/specification/indices/_types/DataStreamLifecycle.ts
+++ b/specification/indices/_types/DataStreamLifecycle.ts
@@ -20,7 +20,7 @@
 import { ByteSize } from '@_types/common'
 import { long } from '@_types/Numeric'
 import { Duration } from '@_types/Time'
-import { DataStreamLifecycleDownsampling } from '@indices/_types/DataStreamLifecycleDownsampling'
+import { DownsamplingRound } from '@indices/_types/DownsamplingRound'
 
 /**
  * Data stream lifecycle denotes that a data stream is managed by the data stream lifecycle and contains the configuration.
@@ -33,9 +33,9 @@ export class DataStreamLifecycle {
    */
   data_retention?: Duration
   /**
-   * The downsampling configuration to execute for the managed backing index after rollover.
+   * The list of downsampling rounds to execute as part of this downsampling configuration
    */
-  downsampling?: DataStreamLifecycleDownsampling
+  downsampling: DownsamplingRound[]
   /**
    * If defined, it turns data stream lifecycle on/off (`true`/`false`) for this data stream. A data stream lifecycle
    * that's disabled (enabled: `false`) will have no effect on the data stream.
diff --git a/specification/indices/_types/DataStreamLifecycleDownsampling.ts b/specification/indices/_types/DataStreamLifecycleDownsampling.ts
deleted file mode 100644
index 4aad62df47..0000000000
--- a/specification/indices/_types/DataStreamLifecycleDownsampling.ts
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Licensed to Elasticsearch B.V. under one or more contributor
- * license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright
- * ownership. Elasticsearch B.V. licenses this file to you under
- * the Apache License, Version 2.0 (the "License"); you may
- * not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-import { DownsamplingRound } from '@indices/_types/DownsamplingRound'
-
-export class DataStreamLifecycleDownsampling {
-  /**
-   * The list of downsampling rounds to execute as part of this downsampling configuration
-   */
-  rounds: DownsamplingRound[]
-}