diff --git a/locales/en-US.yml b/locales/en-US.yml
index 32285b662c..4efa94d401 100644
--- a/locales/en-US.yml
+++ b/locales/en-US.yml
@@ -1008,7 +1008,8 @@ admin/views/instance.vue:
   email-config-info: "Used to confirm email and password reset etc."
   enable-email: "Enable email delivery"
   email: "Email Address"
-  smtp-use-ssl: "Use SSL for SMTP server"
+  smtp-secure: "SMTP接続に暗黙的なSSL/TLSを使用する"
+  smtp-secure-info: "STARTTLS使用時はオフにします。"
   smtp-host: "SMTP Host"
   smtp-port: "SMTP Port"
   smtp-user: "SMTP User"