diff --git a/tests/browser/inbox-edit.spec.mjs b/tests/browser/inbox-edit.spec.mjs
index bc6c000ff..fce5ecaa9 100644
--- a/tests/browser/inbox-edit.spec.mjs
+++ b/tests/browser/inbox-edit.spec.mjs
@@ -20,11 +20,14 @@ test("Inbox edits an owned reply in place and restores the reply draft", async (
   await openPage(page, "Inbox");
   const inbox = page.getByRole("region", { name: "Inbox", exact: true });
   await expect(inbox.getByText("Checking recent activity…")).toHaveCount(0);
-  const conversation = inbox
-    .getByRole("list", { name: "Inbox conversations" })
-    .getByRole("listitem")
-    .filter({ hasText: "Broadcast reply" });
-  await conversation.getByRole("button", { name: /^Open / }).click();
+  // The preview can settle on either reply as thread inputs arrive; the
+  // conversation's accessible identity is the stable target for this test.
+  await inbox
+    .getByRole("button", {
+      name: "Open Alice Fixture in #Alpha",
+      exact: true,
+    })
+    .click();
   const detail = inbox.getByRole("region", { name: "Inbox detail" });
   const reply = detail.getByRole("textbox", {
     name: "Reply to thread",