diff --git a/config/locales/en.yml b/config/locales/en.yml
index daa8116b4..a29c3f03b 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -276,7 +276,7 @@ en:
         not_provided: "Enter how much rent and other charges the household pays %{period}"
       cash_discount_invalid: "Cash discount must be £0 - £999,999"
       percentage:
-        invalid_percentage: "Percentage discount must be 0 - 100"
+        invalid_percentage: "Percentage discount must be between 0 - 100"
     household:
       reasonpref:
         not_homeless: "Answer cannot be ‘homeless or about to lose their home’ as the tenant was not homeless immediately prior to this letting"