diff --git a/lib/_inspect.js b/lib/_inspect.js
index 2a6113b..e80a516 100644
--- a/lib/_inspect.js
+++ b/lib/_inspect.js
@@ -175,6 +175,7 @@ class NodeInspector {
         return this.client.connect()
           .then(() => {
             debuglog('connection established');
+            this.stdout.write(' ok');
           }, (error) => {
             debuglog('connect failed', error);
             // If it's failed to connect 10 times then print failed message