diff --git a/hosts/server/configuration.nix b/hosts/server/configuration.nix
index a8612ff..b866553 100644
--- a/hosts/server/configuration.nix
+++ b/hosts/server/configuration.nix
@@ -109,7 +109,7 @@ systemd.timers.backup = {
   # NAT: lets LAN devices reply to the Pi without needing routes on the LAN router
   networking.nat = {
     enable = true;
-    externalInterface = "ens18";
+    externalInterface = "enp0s18";
     internalInterfaces = [ "wg0" ];
   };
 networking.enableIPv4Forwarding = true;