diff --git a/hosts/server/configuration.nix b/hosts/server/configuration.nix
index e523811..0bfb638 100644
--- a/hosts/server/configuration.nix
+++ b/hosts/server/configuration.nix
@@ -50,7 +50,9 @@ in
   };
 
   networking.interfaces.vmbr0 = {
-    macAddress = "3C:EC:EF:0D:70:0";
+    linkConfig = {
+      macAddress = "3C:EC:EF:0D:70:0";
+    };
     useDHCP = true; # bridge gets IP via DHCP
   };