diff --git a/locales/en.yml b/locales/en.yml
index efa62c831..aa41272ed 100644
--- a/locales/en.yml
+++ b/locales/en.yml
@@ -289,7 +289,7 @@ common/views/components/signin.vue:
   signin-with-twitter: "Log in with Twitter"
   login-failed: "Log in failed. Make sure you have entered your correct username and password."
 common/views/components/signup.vue:
-  invitation-code: "招待コード"
+  invitation-code: "Invitation code"
   invitation-info: "招待コードをお持ちでない方は、<a href=\"{}\">管理者</a>までご連絡ください。"
   username: "Username"
   checking: "Confirming..."