diff --git a/remsim/RSPRO_Server.ttcn b/remsim/RSPRO_Server.ttcn
index 25ec4d1..635629f 100644
--- a/remsim/RSPRO_Server.ttcn
+++ b/remsim/RSPRO_Server.ttcn
@@ -45,7 +45,7 @@
 }
 
 altstep as_ignore_id_ack(integer i) runs on rspro_server_CT {
-	[] RSPRO_SRV[i].receive(ASP_IPA_Event:{up_down := ASP_IPA_EVENT_ID_ACK}) { repeat; }
+	[] RSPRO_SRV[i].receive(tr_ASP_IPA_EV(ASP_IPA_EVENT_ID_ACK)) { repeat; }
 }
 
 
@@ -55,7 +55,7 @@
 	timer T := 20.0;
 	T.start;
 	alt {
-	[] RSPRO_SRV[i].receive(ASP_IPA_Event:{up_down := ASP_IPA_EVENT_UP}) { }
+	[] RSPRO_SRV[i].receive(tr_ASP_IPA_EV(ASP_IPA_EVENT_UP)) { }
 	[] T.timeout {
 		setverdict(fail, "Timeout waiting for ASP_IPA_EVENT_UP");
 		mtc.stop;