diff --git a/sgsn/SGSN_Tests_Iu.ttcn b/sgsn/SGSN_Tests_Iu.ttcn
index 53aa032..f6a4243 100644
--- a/sgsn/SGSN_Tests_Iu.ttcn
+++ b/sgsn/SGSN_Tests_Iu.ttcn
@@ -35,6 +35,7 @@
 	var BSSGP_ConnHdlr vc_conn;
 	f_init();
 	f_sleep(1.0);
+	f_vty_config(SGSNVTY, "sgsn", "encryption uea 0");
 	vc_conn := f_start_handler(refers(f_TC_iu_attach), testcasename(), g_gb, 1001);
 	vc_conn.done;
 	f_cleanup();