diff --git a/modules/system/networking.nix b/modules/system/networking.nix
index 4eaace7..bf52aec 100644
--- a/modules/system/networking.nix
+++ b/modules/system/networking.nix
@@ -47,6 +47,15 @@ in
         type = lib.types.nonEmptyStr;
         default = "nebula@mesh.service";
       };
+
+      dnsServers = lib.mkOption {
+        type = lib.types.anything;
+        default =
+          self.nixosConfigurations
+          |> lib.attrValues
+          |> lib.filter (host: host.config.custom.services.dns.enable)
+          |> lib.map (host: host.config.custom.networking.overlay.address);
+      };
     };
 
     underlay = {
diff --git a/modules/system/services/nebula/default.nix b/modules/system/services/nebula/default.nix
index e02c275..330c6a3 100644
--- a/modules/system/services/nebula/default.nix
+++ b/modules/system/services/nebula/default.nix
@@ -87,11 +87,7 @@ in
     systemd.network.networks."40-nebula" = {
       matchConfig.Name = netCfg.overlay.interface;
       address = [ "${netCfg.overlay.address}/${toString netCfg.overlay.prefixLength}" ];
-      dns =
-        self.nixosConfigurations
-        |> lib.attrValues
-        |> lib.filter (host: host.config.custom.services.dns.enable)
-        |> lib.map (host: host.config.custom.networking.overlay.address);
+      dns = netCfg.overlay.dnsServers;
       domains = [ netCfg.overlay.domain ];
     };
   };