diff --git a/msc/MSC_Tests.ttcn b/msc/MSC_Tests.ttcn
index 8c221dc..7d9c098 100644
--- a/msc/MSC_Tests.ttcn
+++ b/msc/MSC_Tests.ttcn
@@ -513,7 +513,8 @@
 		mm_info := mp_mm_info,
 		sgsap_enable := sgsap,
 		gsup_enable := gsup,
-		ran_idx := ran_idx
+		ran_idx := ran_idx,
+		use_umts_aka := false
 	};
 	return pars;
 }