diff --git a/system/nixos/nginx.nix b/system/nixos/nginx.nix
index cdbbdec..4cbbdef 100644
--- a/system/nixos/nginx.nix
+++ b/system/nixos/nginx.nix
@@ -28,7 +28,7 @@
 
   networking.firewall.interfaces =
     let
-      interfaces = lib.mapAttrsToList (_: value: value.matchConfig.Name ? null) config.systemd.network.networks ++ [ "tailscale0" ];
+      interfaces = lib.mapAttrsToList (_: value: lib.attrsets.attrByPath [ "matchConfig" "Name" ] null) config.systemd.network.networks ++ [ "tailscale0" ];
     in
     builtins.listToAttrs
       (builtins.map