diff --git a/machines/fanny/configuration.nix b/machines/fanny/configuration.nix
index a559d09..a22b6ca 100644
--- a/machines/fanny/configuration.nix
+++ b/machines/fanny/configuration.nix
@@ -110,7 +110,7 @@ in
         };
         networks."30-wg-initrd" = {
           name = "wg-initrd";
-          addresses = [{ Address = peers.fanny-initrd.address; }];
+          addresses = [{ Address = "${peers.fanny-initrd.address}/24"; }];
         };
       };
     };