diff --git a/nixos/modules/services/security/usbguard.nix b/nixos/modules/services/security/usbguard.nix
index 4e685e633354..5d469cabe2cb 100644
--- a/nixos/modules/services/security/usbguard.nix
+++ b/nixos/modules/services/security/usbguard.nix
@@ -192,7 +192,7 @@ in {
 
       serviceConfig = {
         Type = "simple";
-        ExecStart = ''${pkgs.usbguard}/bin/usbguard-daemon -d -k -c ${daemonConfFile}'';
+        ExecStart = ''${pkgs.usbguard}/bin/usbguard-daemon -P -d -k -c ${daemonConfFile}'';
         Restart = "on-failure";
       };
     };