diff --git a/hosts/ni/modules/networking/setup.nix b/hosts/ni/modules/networking/setup.nix
index 0c87d76c..1ffcdfce 100644
--- a/hosts/ni/modules/networking/setup.nix
+++ b/hosts/ni/modules/networking/setup.nix
@@ -53,7 +53,7 @@ in
       # Just supporting local systems, businesses, and business systems.
       services.avahi = {
         enable = true;
-        nssmdns = true;
+        nssmdns4 = true;
         publish = {
           enable = true;
           userServices = true;