diff --git a/test/infra/android/early-init.el b/test/infra/android/early-init.el
index abf8eed2692..a9843ac856f 100644
--- a/test/infra/android/early-init.el
+++ b/test/infra/android/early-init.el
@@ -1,4 +1,4 @@
-;;; Suppress deletion of the initial frame by `frame-initialize'.
+;;; Suppress deletion of the initial frame by `frame-initialize'.  -*- lexical-binding:t -*-
 
 ;; Copyright (C) 2025 Free Software Foundation, Inc.
 
diff --git a/test/infra/android/test-driver.el b/test/infra/android/test-driver.el
index 78774176f02..dad557784d1 100644
--- a/test/infra/android/test-driver.el
+++ b/test/infra/android/test-driver.el
@@ -41,7 +41,8 @@
 
 (defface ats-header '((t :height 1.3 :weight bold
 			 :inherit variable-pitch))
-  "Face of ATS header elements.")
+  "Face of ATS header elements."
+  :group 'silence-byte-compiler)
 
 (defvar-local ats-in-eval nil
   "Whether an `-eval' command is being processed and form's size.")