diff --git a/MAC/MACCommon/ProtID_numbers.txt b/MAC/MACCommon/ProtID_numbers.txt
index 2162f37c73ae9687b7a38ff257ae489b6b191f6e..49f1b2d446a40332c7ea8c362fb4094f943c5ed9 100644
--- a/MAC/MACCommon/ProtID_numbers.txt
+++ b/MAC/MACCommon/ProtID_numbers.txt
@@ -7,6 +7,8 @@
 // 			 in GCF. It is recommended to NOT use this 'id' in APL.
 // Note: The id's are specified in <ServerName>_Protocol.prot files. 
 
+// $Id$
+
 enum 
 { 
 	F_FSM_PROTOCOL = 1,		// state machine protocol (encoded in msb)