diff --git a/nixos/tests/twingate.nix b/nixos/tests/twingate.nix
index 8c7161b6fae5..f8bede09d9f2 100644
--- a/nixos/tests/twingate.nix
+++ b/nixos/tests/twingate.nix
@@ -6,5 +6,9 @@
   testScript = { nodes, ... }: ''
     machine.wait_for_unit("twingate.service")
     machine.succeed("twingate --version | grep '${nodes.machine.services.twingate.package.version}' >&2")
+    machine.succeed("twingate config log-level 'debug'")
+    machine.systemctl("restart twingate.service")
+    machine.succeed("grep 'debug' /etc/twingate/log_level.conf >&2")
+    machine.succeed("twingate config log-level | grep 'debug' >&2")
   '';
 }