diff --git a/ggsn_tests/GGSN_Tests.ttcn b/ggsn_tests/GGSN_Tests.ttcn
index be0e565f2..54064dbcf 100644
--- a/ggsn_tests/GGSN_Tests.ttcn
+++ b/ggsn_tests/GGSN_Tests.ttcn
@@ -46,6 +46,9 @@ module GGSN_Tests {
 		charstring m_ggsn_ip_gtpc := "127.0.0.6";
 		charstring m_ggsn_ip_gtpu := "127.0.0.6";
 
+		/* Does the GGSN support a VTY? */
+		boolean m_have_vty := true;
+
 		/*
 		 * Our tests expect to see these DNS servers in 'Create PDP context responses' sent by the GGSN.
 		 * These addresses must therefore match 'ip[v6] dns' options configured in osmo-ggsn.conf.
@@ -195,9 +198,11 @@ module GGSN_Tests {
 		g_c_seq_nr := f_rnd_int(65535);
 		g_d_seq_nr := f_rnd_int(65535);
 
-		f_init_vty();
-		f_vty_set_gpdu_txseq(use_gtpu_txseq);
-		f_vty_enable_echo_interval(g_use_echo);
+		if (m_have_vty) {
+			f_init_vty();
+			f_vty_set_gpdu_txseq(use_gtpu_txseq);
+			f_vty_enable_echo_interval(g_use_echo);
+		}
 	}
 
 	/* Altstep implementing responses to any incoming echo requests */