diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini
index 2a19b1c0fe..6cc7646471 100644
--- a/options/locale/locale_en-US.ini
+++ b/options/locale/locale_en-US.ini
@@ -492,7 +492,7 @@ admin.new_user.subject = New user %s just signed up
 admin.new_user.user_info = User information
 admin.new_user.text = Please <a href="%s">click here</a> to manage this user from the admin panel.
 
-register_notify = Welcome to Forgejo
+register_notify = Welcome to %s
 register_notify.text_1 = this is your registration confirmation email for %s!
 register_notify.text_2 = You can sign into your account using your username: %s
 register_notify.text_3 = If someone else made this account for you, you will need to <a href="%s">set your password</a> first.
diff --git a/services/mailer/mail.go b/services/mailer/mail.go
index d86607295a..5eb8efe128 100644
--- a/services/mailer/mail.go
+++ b/services/mailer/mail.go
@@ -158,7 +158,7 @@ func SendRegisterNotifyMail(u *user_model.User) {
 		return
 	}
 
-	msg := NewMessage(u.Email, locale.TrString("mail.register_notify"), content.String())
+	msg := NewMessage(u.Email, locale.TrString("mail.register_notify", setting.AppName), content.String())
 	msg.Info = fmt.Sprintf("UID: %d, registration notify", u.ID)
 
 	SendAsync(msg)