diff --git a/1-nixos-node/configuration.nix b/1-nixos-node/configuration.nix
index c7d2963..947f5f9 100644
--- a/1-nixos-node/configuration.nix
+++ b/1-nixos-node/configuration.nix
@@ -46,6 +46,7 @@
         };
         client = {
           enabled = true;
+          preferred_address_family = "ipv4";
 %{if cpu_total_compute != null ~}
           cpu_total_compute = ${cpu_total_compute};
 %{endif ~}
@@ -71,6 +72,7 @@
       webUi = true;
       interface.bind = "${bind_interface}";
       interface.advertise = "${bind_interface}";
+      forceAddrFamily = "ipv4";
       extraConfig  = {
         client_addr = "{{ GetPrivateInterfaces | exclude \"type\" \"ipv6\" | join \"address\" \" \" }} {{ GetAllInterfaces | include \"flags\" \"loopback\" | join \"address\" \" \" }}";
 %{if bootstrap ~}