diff --git a/nixos/modules/virtualisation/libvirtd.nix b/nixos/modules/virtualisation/libvirtd.nix
index 16b79d869193..edde7dde39ed 100644
--- a/nixos/modules/virtualisation/libvirtd.nix
+++ b/nixos/modules/virtualisation/libvirtd.nix
@@ -146,7 +146,8 @@ in {
       # this file is expected in /etc/qemu and not sysconfdir (/var/lib)
       etc."qemu/bridge.conf".text = lib.concatMapStringsSep "\n" (e:
         "allow ${e}") cfg.allowedBridges;
-      systemPackages = with pkgs; [ libvirt libressl.nc cfg.qemuPackage ];
+      systemPackages = with pkgs; [ libvirt libressl.nc iptables cfg.qemuPackage ];
+      etc.ethertypes.source = "${iptables}/etc/ethertypes";
     };
 
     boot.kernelModules = [ "tun" ];