diff --git a/source/adminguide/systemvm.rst b/source/adminguide/systemvm.rst
index 356334fe27..be6500c6f7 100644
--- a/source/adminguide/systemvm.rst
+++ b/source/adminguide/systemvm.rst
@@ -17,8 +17,9 @@
 CloudStack uses several types of system Instances to perform
 tasks in the cloud. In general CloudStack manages these system VMs and
 creates, starts, and stops them as needed based on scale and immediate
-needs. However, the administrator should be aware of them and their
-roles to assist in debugging issues.
+needs. Unlike user VMs, system VMs are expunged on destroying them.
+However, the administrator should be aware of them and their roles to
+assist in debugging issues.
 
 
 The System VM Template