diff --git a/lib/acme-client.js b/lib/acme-client.js
index 2a05db4..17e81a4 100644
--- a/lib/acme-client.js
+++ b/lib/acme-client.js
@@ -70,6 +70,7 @@ module.exports.create = function (deps) {
       var parsed;
 
       if (err) {
+        console.error('[letiny-core/lib/acme-client.js] post');
         console.error(err.stack);
         return cb(err);
       }