diff --git a/hosts/containers/dn42/configuration.nix b/hosts/containers/dn42/configuration.nix
index d907b554..d93f6953 100644
--- a/hosts/containers/dn42/configuration.nix
+++ b/hosts/containers/dn42/configuration.nix
@@ -80,7 +80,7 @@ in {
           inherit (conf.wireguard) listenPort privateKey;
           ips = [ "${address4}/32" "${address6}/64" ];
           postSetup = ''
-            ${pkgs.iproute}/bin/ip route add ${address4}/32 dev ${name}
+            ${pkgs.iproute}/bin/ip route add ${conf.address4}/32 dev ${name}
           '';
           peers = [ ({
             inherit (conf.wireguard) publicKey;