diff --git a/nixos/tests/power-profiles-daemon.nix b/nixos/tests/power-profiles-daemon.nix
index 278e94711830..c887cde4b829 100644
--- a/nixos/tests/power-profiles-daemon.nix
+++ b/nixos/tests/power-profiles-daemon.nix
@@ -6,6 +6,7 @@ import ./make-test-python.nix ({ pkgs, ... }:
     maintainers = [ mvnetbiz ];
   };
   nodes.machine = { pkgs, ... }: {
+    security.polkit.enable = true;
     services.power-profiles-daemon.enable = true;
     environment.systemPackages = [ pkgs.glib ];
   };