diff --git a/library/BSSAP_CodecPort.ttcn b/library/BSSAP_CodecPort.ttcn
index 27056a4..5e43608 100644
--- a/library/BSSAP_CodecPort.ttcn
+++ b/library/BSSAP_CodecPort.ttcn
@@ -155,7 +155,7 @@
 						  template SCCP_PAR_Reason reason,
 						  template PDU_BSSAP bssap := *) := {
 	originator := originator,
-	respondingAddress:= ?,
+	respondingAddress:= *,
 	reason := reason,
 	userData := bssap,
 	connectionId := conn_id,