diff --git a/hosts/plover/modules/hardware/networks.nix b/hosts/plover/modules/hardware/networks.nix
index d3f34bec..59a8a6cf 100644
--- a/hosts/plover/modules/hardware/networks.nix
+++ b/hosts/plover/modules/hardware/networks.nix
@@ -65,9 +65,6 @@ rec {
     };
   };
 
-  # The private network for this host.
-  preferredInternalTLD = "internal";
-
   # Wireguard-related things.
   wireguardPort = 51820;
   wireguardIPHostPart = "10.210.0";
diff --git a/hosts/plover/modules/services/atuin.nix b/hosts/plover/modules/services/atuin.nix
index 6e80d5a5..417f1f43 100644
--- a/hosts/plover/modules/services/atuin.nix
+++ b/hosts/plover/modules/services/atuin.nix
@@ -4,9 +4,9 @@
 { config, lib, pkgs, ... }:
 
 let
-  inherit (import ../hardware/networks.nix) preferredInternalTLD interfaces;
+  inherit (import ../hardware/networks.nix) interfaces;
 
-  atuinInternalDomain = "atuin.${config.networking.domain}.${preferredInternalTLD}";
+  atuinInternalDomain = "atuin.${config.networking.fqdn}";
   host = interfaces.internal.IPv4.address;
 in
 {
diff --git a/hosts/plover/modules/services/keycloak.nix b/hosts/plover/modules/services/keycloak.nix
index 62c41364..7766e305 100644
--- a/hosts/plover/modules/services/keycloak.nix
+++ b/hosts/plover/modules/services/keycloak.nix
@@ -2,10 +2,10 @@
 { config, lib, pkgs, ... }:
 
 let
-  inherit (import ../hardware/networks.nix) preferredInternalTLD interfaces;
+  inherit (import ../hardware/networks.nix) interfaces;
 
   authDomain = "auth.${config.networking.domain}";
-  authInternalDomain = "auth.${config.networking.domain}.${preferredInternalTLD}";
+  authInternalDomain = "auth.${config.networking.fqdn}";
 
   # This is also set on our own.
   keycloakUser = config.services.keycloak.database.username;
diff --git a/hosts/plover/modules/services/portunus.nix b/hosts/plover/modules/services/portunus.nix
index 42977904..861f1d9d 100644
--- a/hosts/plover/modules/services/portunus.nix
+++ b/hosts/plover/modules/services/portunus.nix
@@ -4,7 +4,7 @@
 { config, lib, pkgs, ... }:
 
 let
-  ldapDomain = "ldap.${config.networking.domain}";
+  ldapDomain = "ldap.${config.networking.fqdn}";
 in
 {
   services.portunus = {
diff --git a/hosts/plover/modules/services/wireguard.nix b/hosts/plover/modules/services/wireguard.nix
index f7f08cde..c35bd8d5 100644
--- a/hosts/plover/modules/services/wireguard.nix
+++ b/hosts/plover/modules/services/wireguard.nix
@@ -5,7 +5,7 @@
 let
   acmeName = "wireguard.${config.networking.domain}";
   inherit (builtins) toString;
-  inherit (import ../hardware/networks.nix) interfaces wireguardPort wireguardPeers preferredInternalTLD;
+  inherit (import ../hardware/networks.nix) interfaces wireguardPort wireguardPeers;
 
   wireguardIFName = "wireguard0";
 
@@ -13,7 +13,7 @@ let
   phonePeerAddresses = with wireguardPeers.phone; [ "${IPv4}/24" "${IPv6}/96" ];
 
   internalDomains = [
-    "~${config.networking.domain}.${preferredInternalTLD}"
+    "~${config.networking.fqdn}"
   ];
 in
 {