diff --git a/i18n/en.json b/i18n/en.json
index 9b7aa394..8226bc96 100644
--- a/i18n/en.json
+++ b/i18n/en.json
@@ -49,7 +49,7 @@
 	"action-oathauth-enable": "enable two-factor authentication",
 	"oathauth-auth-token-label": "Token",
 	"oathauth-auth-token-help": "The one-time password used as the second factor of two-factor authentication.",
-	"oathauth-auth-ui": "Please enter verification code from your authentication device",
+	"oathauth-auth-ui": "Please enter a verification code from your authentication device",
 	"oathauth-throttled": "Too many verification attempts! Please wait $1.",
 	"oathauth-login-failed": "Verification failed.",
 	"oathauth-describe-provider": "Two-factor authentication (OATH).",