diff --git a/app/controllers/api/vcs.php b/app/controllers/api/vcs.php
index d4055e4860..0dd854ce98 100644
--- a/app/controllers/api/vcs.php
+++ b/app/controllers/api/vcs.php
@@ -790,7 +790,7 @@ App::post('/v1/vcs/github/events')
             $valid = empty($signatureRemote) ? true : $github->validateWebhookEvent($payload, $signatureRemote, $signatureLocal);
 
             if (!$valid) {
-                throw new Exception(Exception::GENERAL_ACCESS_FORBIDDEN, "Payload is not signed properly. Please make sure webhook secret has same value in GitHub app and in _APP_VCS_GITHUB_WEBHOOK_SECRET environment variable");
+                throw new Exception(Exception::GENERAL_ACCESS_FORBIDDEN, "Invalid webhook payload signature. Please make sure the webhook secret has same value in your GitHub app and in the _APP_VCS_GITHUB_WEBHOOK_SECRET environment variable");
             }
 
             $event = $request->getHeader('x-github-event', '');