diff --git a/ops/nixos/swann/default.nix b/ops/nixos/swann/default.nix
index b454a8d54d..92fd4b3b8b 100644
--- a/ops/nixos/swann/default.nix
+++ b/ops/nixos/swann/default.nix
@@ -40,6 +40,7 @@ in {
     interfaces = {
       ens-virginmedia = {
         useDHCP = true;
+        macAddress = "e4:3a:6e:16:07:61";
       };
       ens-general = {
         ipv4.addresses = [