diff --git a/config/locales/simple_form.en.yml b/config/locales/simple_form.en.yml
index 0313d4683e..6bc7c6ac52 100644
--- a/config/locales/simple_form.en.yml
+++ b/config/locales/simple_form.en.yml
@@ -243,11 +243,13 @@ en:
           warn: Hide with a warning
       form_admin_settings:
         activity_api_enabled: Publish aggregate statistics about user activity in the API
+        app_icon: App icon
         backups_retention_period: User archive retention period
         bootstrap_timeline_accounts: Always recommend these accounts to new users
         closed_registrations_message: Custom message when sign-ups are not available
         content_cache_retention_period: Remote content retention period
         custom_css: Custom CSS
+        favicon: Favicon
         mascot: Custom mascot (legacy)
         media_cache_retention_period: Media cache retention period
         peers_api_enabled: Publish list of discovered servers in the API