diff --git a/src/app/parent/child-manage.tsx b/src/app/parent/child-manage.tsx
index 88f73e4..d835b09 100644
--- a/src/app/parent/child-manage.tsx
+++ b/src/app/parent/child-manage.tsx
@@ -18,8 +18,8 @@ export function ChildManage({ kids }: { kids: { id: number; name: string }[] })
     const fd = new FormData();
     fd.set("name", name);
     startTransition(async () => {
-      const r = await addChild(fd);
-      if (r?.error) setMsg(r.error);
+      const err = await addChild(fd);
+      if (err) setMsg(err);
       else {
         setName("");
         setMsg("已添加,用孩子设备激活即可");