diff --git a/ServiceMonitor/ServiceMonitor/CmdHelper.cs b/ServiceMonitor/ServiceMonitor/CmdHelper.cs
index cde9837837aefbfa8a5f01f91b0c979d3b8d5ed0..175fa9912cc6ecf0ae16480d79dc39a29c05a667 100644
--- a/ServiceMonitor/ServiceMonitor/CmdHelper.cs
+++ b/ServiceMonitor/ServiceMonitor/CmdHelper.cs
@@ -98,7 +98,7 @@ namespace ServiceMonitor
                         if (strArr[1].EndsWith($":{port}"))
                         {
                             int result;
-                            bool b = int.TryParse(strArr[4], out result);
+                            bool b = int.TryParse(strArr[strArr.Length-1], out result);
                             if (b && !list_pid.Contains(result))
                                 list_pid.Add(result);
                         }