diff --git a/locales/en-US.json b/locales/en-US.json
index 90ffbbf6..8e0aa204 100644
--- a/locales/en-US.json
+++ b/locales/en-US.json
@@ -136,6 +136,7 @@
   "nav_footer": {
     "built_at": "Built {0}",
     "select_feature_flags": "Toggle Feature Flags",
+    "select_font_size": "Select Font Size",
     "select_language": "Select Language",
     "show_intro": "Show intro",
     "toggle_theme": "Toggle Theme",
diff --git a/locales/zh-CN.json b/locales/zh-CN.json
index 7ca31f74..95d6a944 100644
--- a/locales/zh-CN.json
+++ b/locales/zh-CN.json
@@ -123,6 +123,7 @@
   "nav_footer": {
     "built_at": "于 {0} 构建",
     "select_feature_flags": "功能开关",
+    "select_font_size": "字体大小",
     "select_language": "选择语言",
     "show_intro": "应用介绍",
     "toggle_theme": "切换主题",