diff --git a/test/monitor.js b/test/monitor.js
index 6733689..103d4ae 100644
--- a/test/monitor.js
+++ b/test/monitor.js
@@ -83,7 +83,7 @@ if (!PUSHGATEWAY_URL) {
           if (res.statusCode && res.statusCode >= 200 && res.statusCode < 300) {
             resolve();
           } else {
-            reject(new Error(`PushGateway HTTP-Status: ${res.statusCode}`));
+            reject(new Error(`PushGateway HTTP-Status: ${res.statusCode} ${PUSHGATEWAY_URL} ${lines}`));
           }
         });
       });