diff --git a/docs/source/overview/architecture.rst b/docs/source/overview/architecture.rst
index b3bf3ffb9..a0c7863a9 100644
--- a/docs/source/overview/architecture.rst
+++ b/docs/source/overview/architecture.rst
@@ -18,7 +18,7 @@ Network Services (dhcp, tftp, http,etc):
   The various network services necessary to perform Operating System deployment over the network.  xCAT will bring up and configure the network services automatically without any intervention from the System Administrator.
 
 Service Processor (SP):
-  A module embedded in the hardware server used to perform the out-of-band hardware control. (e.g. Integrated Management Module (IMM), Flexible Service Processor (FSP), etc) 
+  A module embedded in the hardware server used to perform the out-of-band hardware control. (e.g. Integrated Management Module (IMM), Flexible Service Processor (FSP), Baseboard Management Controller (BMC), etc) 
 
 Management network:
   The network used by the Management Node (or Service Node) to install operating systems and manage the nodes.  The Management Node and in-band Network Interface Card (NIC) of the nodes are connected to this network.   If you have a large cluster utilizing Service Nodes, sometimes this network is segregated into separate VLANs for each Service Node.