diff --git a/data/network.nix b/data/network.nix
index bb61f65..2284c9e 100644
--- a/data/network.nix
+++ b/data/network.nix
@@ -71,16 +71,16 @@ rec {
     };
   };
 
-  dnsMappings = (lib.filterAttrs (
-      name: value: !(value ? domainOverride))
-      builtins.listToAttrs (
-        map (name: {
-          name = "${name}.${local_domain}";
-          value = services.${name}.ip;
-        }) 
-        (builtins.attrNames services)
-      )
-    );
+  _serviceNames = (builtins.attrNames services);
+  _dnsMappingObjects = builtins.listToAttrs (
+    map (name: {
+      name = "${name}.${local_domain}";
+      value = services.${name}.ip;
+    }) 
+    _serviceNames
+  );
+  _predOnlyLocalObjs = (name: value: !(value ? domainOverride));
+  dnsMappings = lib.filterAttrs _predOnlyLocalObjs _dnsMappingObjects;
 
   reverse_proxy = lib.filterAttrs (name: value: value ? reverse_proxy) services;
 }