diff --git a/config/locales/en.yml b/config/locales/en.yml
index 0dc8dec7e..456ce9805 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -69,7 +69,7 @@ en:
       la:
         la_known: "Enter name of local authority"
         la_invalid_for_org: "%{org_name} does not operate in %{la_name}"
-        postcode_invalid_for_org: "%{org_name} does not operate in %{postcode}"
+        postcode_invalid_for_org: "Postcode must be in an area covered by %{org_name}"
       rsnvac:
         first_let_not_social: "Reason for vacancy cannot be first let if unit has been previously let as social housing"
         first_let_social: "Reason for vacancy must be first let if unit has been previously let as social housing"