diff --git a/tests/db/db_test.c b/tests/db/db_test.c
index 755a6e9..a54f11b 100644
--- a/tests/db/db_test.c
+++ b/tests/db/db_test.c
@@ -254,3 +254,10 @@
 
 /* stubs */
 void vty_out() {}
+void vlr_subscr_disconnected() {}
+void vlr_subscr_rx_tmsi_reall_compl() {}
+void vlr_subscr_rx_id_resp() {}
+void vlr_subscr_rx_auth_resp() {}
+void vlr_loc_update() {}
+void vlr_proc_acc_req() {}
+void vlr_init() {}