diff --git a/library/MGCP_Emulation.ttcn b/library/MGCP_Emulation.ttcn
index b164748..f8d5a1e 100644
--- a/library/MGCP_Emulation.ttcn
+++ b/library/MGCP_Emulation.ttcn
@@ -9,6 +9,7 @@
 
 type component MGCP_ConnHdlr {
 	port MGCP_Conn_PT MGCP;
+	var MgcpConnectionId mgcp_conn_id;
 }
 
 /* port between individual per-connection components and this dispatcher */