diff --git a/lib/json-http-service.js b/lib/json-http-service.js
index e8901ea6..7876aa9d 100644
--- a/lib/json-http-service.js
+++ b/lib/json-http-service.js
@@ -47,6 +47,7 @@ JsonHttpService.prototype = {
     return new Promise((resolve, reject) => {
       sua.post(self.url)
         .set('Content-Type', 'application/json')
+        .set('User-Agent', 'W3C/Echidna')
         .auth(self.user, self.pass)
         .set(self.headers)
         .send(body)