diff --git a/ops/nixos/lib/blade-router.nix b/ops/nixos/lib/blade-router.nix
index dd5575e329..d43e0f3174 100644
--- a/ops/nixos/lib/blade-router.nix
+++ b/ops/nixos/lib/blade-router.nix
@@ -101,6 +101,7 @@ in
         address = config.my.blade-router.addresses.linknet.v6.local;
         prefixLength = config.my.blade-router.addresses.linknet.v6.prefixLength;
       }];
+      interfaces.vl-linx.macAddress = "e4:11:5b:ac:e4:00";
       interfaces.vl-linx.ipv4.addresses = [{
         address = cfg.addresses.vl-linx.v4.addr;
         prefixLength = cfg.addresses.vl-linx.v4.prefixLength;