diff --git a/data/friends.tsx b/data/friends.tsx
index 92fa6d8..fb7f943 100644
--- a/data/friends.tsx
+++ b/data/friends.tsx
@@ -83,6 +83,12 @@ export const Friends: Friend[] = [
     website: 'https://guyuanjie.com/',
     avatar: '/img/friend/yuanjie gu.jpg',
   },
+  {
+    title: 'Xiaofeng Zhang',
+    description: '张晓峰',
+    website: 'https://zhangbaijin.github.io/',
+    avatar: '/img/friend/xiaofeng zhang.jpg',
+  },
   {
     title: 'Xin Fu',
     description: '符鑫',
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diff --git a/static/img/friend/xiaofeng zhang.jpg b/static/img/friend/xiaofeng zhang.jpg
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index 0000000..8d5bd93
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diff --git a/static/manifest.json b/static/manifest.json
index b324450..d7104eb 100644
--- a/static/manifest.json
+++ b/static/manifest.json
@@ -14,7 +14,7 @@
   ],
   "icons": [
     {
-      "src": "img/icons/icon-128.pnag",
+      "src": "img/icons/icon-128.png",
       "sizes": "128x128",
       "type": "image/png"
     },