diff --git a/modules/os.nix b/modules/os.nix
index e97b692..e760137 100644
--- a/modules/os.nix
+++ b/modules/os.nix
@@ -12,19 +12,19 @@ in
     };
 
     hostName = mkOption {
+      type = types.nullOr types.str;
+      default = null;
+    };
+
+    domain = mkOption {
       type = types.str;
       default = null;
     };
 
-    # domain = mkOption {
-    #   type = types.str;
-    #   default = "local";
-    # };
-
-    # searchDomains = mkOption {
-    #   type = types.listOf types.str;
-    #   default = [ cfg.domain ];
-    # };
+    searchDomains = mkOption {
+      type = types.listOf types.str;
+      default = [ cfg.domain ];
+    };
 
     cert = mkOption {
       type = types.attrs;
@@ -55,8 +55,8 @@ in
 
     networking = {
       hostName = cfg.hostName;
-      # domain = cfg.domain;
-      # search = cfg.searchDomains;
+      domain = cfg.domain;
+      search = cfg.searchDomains;
       extraHosts = cfg.extraHosts;
     };