diff --git a/src/pages/Setting.tsx b/src/pages/Setting.tsx
index af65077..27c789e 100644
--- a/src/pages/Setting.tsx
+++ b/src/pages/Setting.tsx
@@ -13,7 +13,7 @@ export default function Setting() {
 
   const addrInput = useRef<HTMLInputElement>(null);
   const [standbyPickerVisible, setStandbyPickerVisible] = useState(false);
-  const [selectStandby, setSelectStandby] = useState<number[]>([20]);
+  const [selectStandby, setSelectStandby] = useState<number[]>([context.setting.standbyMinutes]);
   // const [addr, setAddr] = useState('');
   // const [port, setPort] = useState<number>(80);
 
@@ -33,7 +33,8 @@ export default function Setting() {
     if (addrInput.current && context.setting.server) {
       addrInput.current!.value = context.setting.server;
     }
-  }, [context.setting.server]);
+    setSelectStandby([context.setting.standbyMinutes]);
+  }, [context.setting]);
 
   const onSaveClick = async () => {
     const server = addrInput.current!.value;