diff --git a/src/app/api/integrations/creatives/route.ts b/src/app/api/integrations/creatives/route.ts
index b9ea22e..55958c4 100644
--- a/src/app/api/integrations/creatives/route.ts
+++ b/src/app/api/integrations/creatives/route.ts
@@ -36,12 +36,13 @@ export async function POST(req: NextRequest) {
 
   // Si viene generation_request_id, averiguar parent_id + brief RRSS
   let defaultParentId: string | null = null;
-  let rrssBrief: {
+  type RrssBrief = {
     channel?: string;
     source_pipeline_id?: string;
     write_back?: { pipeline_id?: string };
     format?: string;
-  } | null = null;
+  };
+  let rrssBrief: RrssBrief | null = null;
   const genRequestId = body.generation_request_id || items[0]?.generation_request_id;
 
   if (genRequestId) {
@@ -56,7 +57,7 @@ export async function POST(req: NextRequest) {
       defaultParentId = genReq.source_creative_id;
       rrssBrief =
         genReq.brief && typeof genReq.brief === 'object'
-          ? (genReq.brief as typeof rrssBrief)
+          ? (genReq.brief as RrssBrief)
           : null;
     }
   }