diff --git a/msc_tests/MSC_Tests.ttcn b/msc_tests/MSC_Tests.ttcn
index 94e5822..8512d3e 100644
--- a/msc_tests/MSC_Tests.ttcn
+++ b/msc_tests/MSC_Tests.ttcn
@@ -1061,7 +1061,6 @@
 	var BSC_ConnHdlr vc_conn;
 	f_init();
 	f_vty_config(MSCVTY, "network", "authentication required");
-	f_vty_config(MSCVTY, "msc", "assign-tmsi");
 
 	vc_conn := f_start_handler(refers(f_tc_lu_auth_2G_fail), testcasename(), 23);
 	vc_conn.done;
@@ -1075,7 +1074,6 @@
 	var BSC_ConnHdlr vc_conn;
 	f_init();
 	f_vty_config(MSCVTY, "network", "authentication required");
-	f_vty_config(MSCVTY, "msc", "assign-tmsi");
 	f_vty_config(MSCVTY, "network", "encryption a5 1 3");
 
 	vc_conn := f_start_handler(refers(f_tc_lu_imsi_auth_tmsi_encr_13_13), testcasename(), 24);