diff --git a/xmlout.js b/xmlout.js
index abecc22..6c916a0 100644
--- a/xmlout.js
+++ b/xmlout.js
@@ -96,7 +96,7 @@ function _topupRequest(task) {
         // Results of the method response
         if (error && (error.code == 'ECONNREFUSED' || error.code == 'EHOSTUNREACH')) {
 
-            logger.warn('XMLRPC Client Error', {requestId: task['requestId'], errorMessage: error});
+            logger.warn('XMLRPC Client Error', {requestId: task['requestId'], err: error});
             callbackReport(task['requestId'], '91', 'Gangguan koneksi ke suplier: ' + error);
             return;
         }