diff --git a/nixos/modules/config/resolvconf.nix b/nixos/modules/config/resolvconf.nix
index 3b8cc0cb8f42..e52b90c037a8 100644
--- a/nixos/modules/config/resolvconf.nix
+++ b/nixos/modules/config/resolvconf.nix
@@ -10,7 +10,8 @@ let
 
   resolvconfOptions = cfg.extraOptions
     ++ optional cfg.dnsSingleRequest "single-request"
-    ++ optional cfg.dnsExtensionMechanism "edns0";
+    ++ optional cfg.dnsExtensionMechanism "edns0"
+    ++ optional cfg.useLocalResolver "trust-ad";
 
   configText =
     ''