diff --git a/web/src/services/knowledge-service.ts b/web/src/services/knowledge-service.ts
index 7488d2f1f9..47e674e45b 100644
--- a/web/src/services/knowledge-service.ts
+++ b/web/src/services/knowledge-service.ts
@@ -255,7 +255,7 @@ export function getKnowledgeGraph(knowledgeId: string) {
 }
 
 export function deleteKnowledgeGraph(knowledgeId: string) {
-  return request.delete(api.getKnowledgeGraph(knowledgeId));
+  return request.delete(api.knowledgeGraph(knowledgeId));
 }
 
 export const listDataset = (params?: IFetchKnowledgeListRequestParams) =>