diff --git a/ops/nixos/blade-janeway/default.nix b/ops/nixos/blade-janeway/default.nix
index ab18245f8c..5ba38d60fc 100644
--- a/ops/nixos/blade-janeway/default.nix
+++ b/ops/nixos/blade-janeway/default.nix
@@ -22,6 +22,7 @@ in {
     ];
     interfaces.bond0.ipv4.addresses = [{
       address = "192.168.1.180";
+      prefixLength = 24;
     }];
   };
   my.ip.tailscale = "100.121.116.85";