diff --git a/nixops/rpi-server.nix b/nixops/rpi-server.nix
index 6d151451..6919d9aa 100644
--- a/nixops/rpi-server.nix
+++ b/nixops/rpi-server.nix
@@ -113,6 +113,7 @@
   boot.kernel.sysctl."net.ipv6.conf.all.forwarding" = "1";
   boot.kernel.sysctl."net.ipv6.conf.default.forwarding" = "1";
 
+  users.extraGroups.plugdev = { };
   users.mutableUsers = false;
   users.defaultUserShell = pkgs.fish;
   users.extraUsers = import ./common-users.nix { inherit pkgs; };