diff --git a/bin/letsencrypt.js b/bin/letsencrypt.js
index a61cb9b..e273285 100755
--- a/bin/letsencrypt.js
+++ b/bin/letsencrypt.js
@@ -106,8 +106,8 @@ cli.main(function(_, options) {
     , chainPath: args.chainPath
     }, handlers).register(args, function (err, results) {
       if (err) {
-        console.error('[Error]: letsencrypt');
-        console.error(err);
+        console.error('[Error]: letsencrypt-cli');
+        console.error(err.stack || err);
         return;
       }