diff --git a/hosts/storage-ng/public-access-proxy/configuration.nix b/hosts/storage-ng/public-access-proxy/configuration.nix
index 0ea5f6ee..6c1f1d77 100644
--- a/hosts/storage-ng/public-access-proxy/configuration.nix
+++ b/hosts/storage-ng/public-access-proxy/configuration.nix
@@ -21,7 +21,7 @@
   fileSystems."/" = { fsType = "rootfs"; device = "rootfs"; };
 
   networking.hostName = "public-access-proxy";
-  networking.defaultGateway = "172.22.99.4";
+  networking.defaultGateway = { address = "172.22.99.4"; interface = "eth0"; };
 
   # Set your time zone.
   time.timeZone = "Europe/Berlin";