diff --git a/wally/discover/node.py b/wally/discover/node.py
index 9161a21..a3d58f9 100644
--- a/wally/discover/node.py
+++ b/wally/discover/node.py
@@ -10,6 +10,7 @@
         self.conn_url = conn_url
         self.connection = None
         self.monitor_ip = None
+        self.os_vm_id = None
 
     def get_ip(self):
         if self.conn_url == 'local':