diff --git a/modules/services/hardware/udev.nix b/modules/services/hardware/udev.nix
index d819527fb234..1eaf9fd71b2a 100644
--- a/modules/services/hardware/udev.nix
+++ b/modules/services/hardware/udev.nix
@@ -23,7 +23,8 @@ let
     KERNEL=="kvm",                  MODE="0666"
     KERNEL=="kqemu",                NAME="%k", MODE="0666"
     KERNEL=="vboxdrv", NAME="vboxdrv", OWNER="root", GROUP="root", MODE="0666"
-
+    KERNEL=="vboxadd", NAME="vboxadd", OWNER="root", GROUP="root", MODE="0660"
+    KERNEL=="vboxuser", NAME="vboxuser", OWNER="root", GROUP="root", MODE="0666"
   '';
   
   # Perform substitutions in all udev rules files.