diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini
index e0973fe8740d..ef9e946c0a9e 100644
--- a/options/locale/locale_en-US.ini
+++ b/options/locale/locale_en-US.ini
@@ -477,7 +477,7 @@ activate_email = Verify your email address
 activate_email.title = %s, please verify your email address
 activate_email.text = Please click the following link to verify your email address within <b>%s</b>:
 
-register_notify = Welcome to Gitea
+register_notify = Welcome to %s
 register_notify.title = %[1]s, welcome to %[2]s
 register_notify.text_1 = this is your registration confirmation email for %s!
 register_notify.text_2 = You can now login via username: %s.
diff --git a/services/mailer/mail.go b/services/mailer/mail.go
index 11810a036d62..1f5df6efe7ed 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.EmailTo(), locale.TrString("mail.register_notify"), content.String())
+	msg := NewMessage(u.EmailTo(), locale.TrString("mail.register_notify", setting.AppName), content.String())
 	msg.Info = fmt.Sprintf("UID: %d, registration notify", u.ID)
 
 	SendAsync(msg)