diff --git a/web/src/app/infra/entities/api/index.ts b/web/src/app/infra/entities/api/index.ts
index 787631a3..d687dce5 100644
--- a/web/src/app/infra/entities/api/index.ts
+++ b/web/src/app/infra/entities/api/index.ts
@@ -61,7 +61,7 @@ export interface KnowledgeBase {
   description: string;
   embedding_model_uuid: string;
   created_at?: string;
-  top_k?: number;
+  top_k: number;
 }
 
 export interface ApiRespProviderEmbeddingModels {