diff --git a/app/components/SessionCard.tsx b/app/components/SessionCard.tsx
index 178cb78..4055aed 100644
--- a/app/components/SessionCard.tsx
+++ b/app/components/SessionCard.tsx
@@ -21,7 +21,7 @@ function getMockForSession(sessionId: string) {
 
 function AvatarItem({ joiner }: { joiner: { name?: string; nickname?: string; avatar?: string; xiaohongshu_url?: string } }) {
   const [imgError, setImgError] = useState(false);
-  const nickname = "name" in joiner ? joiner.name : joiner.nickname ?? "";
+  const nickname = ("name" in joiner ? joiner.name : joiner.nickname) ?? "";
   const avatar = joiner.avatar;
   const xhUrl = joiner.xiaohongshu_url;
   const showAvatar = avatar && avatar.length > 0 && !imgError;
diff --git a/app/hooks/useXhClickOpener.ts b/app/hooks/useXhClickOpener.ts
index 9807d7a..83d1377 100644
--- a/app/hooks/useXhClickOpener.ts
+++ b/app/hooks/useXhClickOpener.ts
@@ -6,7 +6,7 @@ const CLICK_THRESHOLD = 5;
 /** 连续点击 5 次打开小红书主页 */
 export function useXhClickOpener(xhUrl: string | undefined) {
   const countRef = useRef(0);
-  const timerRef = useRef<ReturnType<typeof setTimeout>>();
+  const timerRef = useRef<ReturnType<typeof setTimeout> | undefined>(undefined);
 
   return useCallback(
     (e: React.MouseEvent) => {