diff --git a/output/openapi/elasticsearch-serverless-openapi.json b/output/openapi/elasticsearch-serverless-openapi.json
index d1801dcb24..75800e947f 100644
--- a/output/openapi/elasticsearch-serverless-openapi.json
+++ b/output/openapi/elasticsearch-serverless-openapi.json
@@ -59787,7 +59787,7 @@
                 "description": "This value determines how much influence documents in individual result sets per query have over the final ranked result set.",
                 "type": "number"
               },
-              "window_size": {
+              "rank_window_size": {
                 "description": "This value determines the size of the individual result sets per query.",
                 "type": "number"
               }
diff --git a/output/schema/schema.json b/output/schema/schema.json
index 26843f5f1a..6103b9ee33 100644
--- a/output/schema/schema.json
+++ b/output/schema/schema.json
@@ -46554,7 +46554,7 @@
         },
         {
           "description": "This value determines the size of the individual result sets per query.",
-          "name": "window_size",
+          "name": "rank_window_size",
           "required": false,
           "type": {
             "kind": "instance_of",
diff --git a/output/typescript/types.ts b/output/typescript/types.ts
index e1407d293b..0612c7eb63 100644
--- a/output/typescript/types.ts
+++ b/output/typescript/types.ts
@@ -2523,7 +2523,7 @@ export interface QueryVectorBuilder {
 export interface RRFRetriever extends RetrieverBase {
   retrievers: RetrieverContainer[]
   rank_constant?: integer
-  window_size?: integer
+  rank_window_size?: integer
 }
 
 export interface RankBase {
diff --git a/specification/_types/Retriever.ts b/specification/_types/Retriever.ts
index bd179180a0..088041ce45 100644
--- a/specification/_types/Retriever.ts
+++ b/specification/_types/Retriever.ts
@@ -76,5 +76,5 @@ export class RRFRetriever extends RetrieverBase {
   /** This value determines how much influence documents in individual result sets per query have over the final ranked result set. */
   rank_constant?: integer
   /** This value determines the size of the individual result sets per query.  */
-  window_size?: integer
+  rank_window_size?: integer
 }