diff --git a/website/src/locales/zh.json b/website/src/locales/zh.json
index e56a98ce..0c1cab48 100644
--- a/website/src/locales/zh.json
+++ b/website/src/locales/zh.json
@@ -46,6 +46,7 @@
         "fahrenheit": "华氏度",
         "language": "语言",
         "mode": "主题",
+        "system": "System",
         "light": "浅色",
         "dark": "暗色",
         "street_view_source": "街景来源",