diff --git a/src/web/public/i18n.js b/src/web/public/i18n.js
index 9df6b7ff..97caeeb8 100644
--- a/src/web/public/i18n.js
+++ b/src/web/public/i18n.js
@@ -677,7 +677,6 @@
     // placeholder and label are looked up by the module at build time, since
     // the DOM translator skips <textarea> subtrees.
     'Compose prompt': '撰写提示词',
-    Attach: '添加附件',
     'Open a session to attach a file': '请先打开一个会话再添加附件',
     'Only image or video files are supported': '仅支持图片或视频文件',
     'Compose prompt, draft saved': '撰写提示词，草稿已保存',
diff --git a/test/tile-grid-i18n.test.ts b/test/tile-grid-i18n.test.ts
index da8fd944..67a86dd5 100644
--- a/test/tile-grid-i18n.test.ts
+++ b/test/tile-grid-i18n.test.ts
@@ -357,6 +357,11 @@ describe('every tile grid string the code puts on screen translates to zh-CN', (
     expect(bad).toEqual([]);
   });
 
+  it("the tile's Attach button keeps its meaning (one ZH_CN key: a later duplicate would win)", () => {
+    // The phone toolbar's Attach button shares the English word; 附加 fits both.
+    expect(zh.api.t('Attach')).toBe('附加');
+  });
+
   it('the harness logo keeps harness and model names as they are and translates the rest', () => {
     // Not vacuous: every form the logo's tooltip takes was seen.
     expect([...harnessLabels.keys()]).toEqual(