diff --git a/hlr/HLR_Tests.ttcn b/hlr/HLR_Tests.ttcn
index f7902be..e32fa68 100644
--- a/hlr/HLR_Tests.ttcn
+++ b/hlr/HLR_Tests.ttcn
@@ -476,16 +476,16 @@
 	GSUP.send(valueof(ts_GSUP_PROC_SS_REQ(imsi, sid, state, ss)));
 	T.start;
 	alt {
-	[exp_fail] GSUP.receive(tr_GSUP_PROC_SS_ERR(imsi, sid, exp_err_cause)) -> value ret {
+	[exp_fail] GSUP.receive(tr_GSUP_PROC_SS_ERR(imsi, sid, ?, exp_err_cause)) -> value ret {
 		setverdict(pass);
 		}
-	[exp_fail] GSUP.receive(tr_GSUP_PROC_SS_ERR(imsi, sid, ?)) -> value ret {
+	[exp_fail] GSUP.receive(tr_GSUP_PROC_SS_ERR(imsi, sid, ?, ?)) -> value ret {
 		setverdict(fail, "Unexpected PROC_SS ERROR Cause");
 		}
 	[exp_fail] GSUP.receive(tr_GSUP_PROC_SS_RES(imsi, sid, ?, ?)) -> value ret {
 		setverdict(fail, "Unexpected PROC_SS.res for unknown IMSI");
 		}
-	[not exp_fail] GSUP.receive(tr_GSUP_PROC_SS_ERR(imsi, sid, ?)) -> value ret {
+	[not exp_fail] GSUP.receive(tr_GSUP_PROC_SS_ERR(imsi, sid, ?, ?)) -> value ret {
 		setverdict(fail, "Unexpected PROC_SS ERROR");
 		}
 	[not exp_fail] GSUP.receive(tr_GSUP_PROC_SS_RES(imsi, sid, ?, ?)) -> value ret {
@@ -511,7 +511,7 @@
 	}
 	T.start;
 	alt {
-	[] GSUP.receive(tr_GSUP_PROC_SS_ERR(imsi, sid, ?)) -> value ret {
+	[] GSUP.receive(tr_GSUP_PROC_SS_ERR(imsi, sid, ?, ?)) -> value ret {
 		setverdict(fail, "Unexpected PROC_SS ERROR Cause");
 		}
 	[not exp_ss] GSUP.receive(tr_GSUP_PROC_SS_RES(imsi, sid, state, omit)) -> value ret {