1 files changed, 3 insertions, 1 deletions

diff --git a/src/messenger/gnunet-service-messenger_basement.c b/src/messenger/gnunet-service-messenger_basement.c
index 190cf2de5..f302c8d66 100644
--- a/src/messenger/gnunet-service-messenger_basement.c
+++ b/src/messenger/gnunet-service-messenger_basement.c
@@ -1,6 +1,6 @@
 /*
    This file is part of GNUnet.
-   Copyright (C) 2020 GNUnet e.V.
+   Copyright (C) 2020--2021 GNUnet e.V.
 
    GNUnet is free software: you can redistribute it and/or modify it
    under the terms of the GNU Affero General Public License as published
@@ -28,6 +28,8 @@
 size_t
 count_of_tunnels (const struct GNUNET_MESSENGER_ListTunnels *tunnels)
 {
+  GNUNET_assert(tunnels);
+
   const struct GNUNET_MESSENGER_ListTunnel *element;
   size_t count = 0;