diff --git a/app/api/admin/settings/route.ts b/app/api/admin/settings/route.ts
index b857f29de..b8857ad45 100644
--- a/app/api/admin/settings/route.ts
+++ b/app/api/admin/settings/route.ts
@@ -19,6 +19,7 @@ import {
   normalizeRealtimeCanvasConfigForStorage,
   resolveRealtimeProviders,
 } from "@/lib/realtime/config";
+import { DETAIL_AGENT_LOCAL_MOONSHOT_SETTING_KEY } from "@/lib/ai/detail-agent-model-config";
 import { db } from "@/lib/db";
 import { siteSettings } from "@/lib/db/schema";
 import { eq } from "drizzle-orm";
@@ -86,7 +87,7 @@ export async function POST(request: Request) {
 
     let nextValue = value;
 
-    if (key === "moonshot_detail_agent_config") {
+    if (key === DETAIL_AGENT_LOCAL_MOONSHOT_SETTING_KEY) {
       const config = moonshotDetailAgentConfigSchema.parse(value || {});
       const normalizedBaseUrl = String(config.baseUrl || "").trim() || MOONSHOT_OFFICIAL_BASE_URL;
       const normalizedModelId = String(config.modelId || "").trim() || MOONSHOT_KIMI_K25_MODEL_ID;
@@ -197,7 +198,7 @@ export async function POST(request: Request) {
 
       return Response.json({
         setting: {
-          key: "moonshot_detail_agent_config",
+          key: DETAIL_AGENT_LOCAL_MOONSHOT_SETTING_KEY,
           value: {
             providerId: provider.id,
             modelEntryId: model.id,