diff --git a/lib/express.js b/lib/express.js
index 3ac4a3e..13f251f 100644
--- a/lib/express.js
+++ b/lib/express.js
@@ -98,7 +98,7 @@ function config (app, { showLoginPage, serviceProvider, idpConfig }) {
         .send(
           persona
             ? pick(persona, attributes)
-            : { code: 404, message: 'Not Found', fields: req.params.uinfin }
+            : { code: 404, message: 'UIN/FIN does not exist in MyInfo.', fields: '' }
         )
     }
   }