diff --git a/openbsc/tests/gbproxy/gbproxy_test.c b/openbsc/tests/gbproxy/gbproxy_test.c
index 9b2218c..a128b39 100644
--- a/openbsc/tests/gbproxy/gbproxy_test.c
+++ b/openbsc/tests/gbproxy/gbproxy_test.c
@@ -3418,6 +3418,8 @@
 
 	dump_peers(stdout, 0, 0, &gbcfg);
 
+	OSMO_ASSERT(!gbproxy_link_info_by_tlli(peer, foreign_tlli));
+
 	/* Attach (incomplete) and Detach (MO) */
 
 	gbproxy_delete_link_infos(peer);