diff --git a/msc/MSC_Tests.ttcn b/msc/MSC_Tests.ttcn
index e37bc52..46a368e 100644
--- a/msc/MSC_Tests.ttcn
+++ b/msc/MSC_Tests.ttcn
@@ -387,6 +387,7 @@
 		cm2 := valueof(ts_CM2_default),
 		cm3 := omit,
 		vec := omit,
+		vec_keep := false,
 		net := net_pars,
 		send_early_cm := true,
 		ipa_ctrl_ip := mp_msc_ip,