diff --git a/nix/hosts/doloro/nixos.nix b/nix/hosts/doloro/nixos.nix
index 457df97..a8b8493 100644
--- a/nix/hosts/doloro/nixos.nix
+++ b/nix/hosts/doloro/nixos.nix
@@ -196,7 +196,10 @@ in
   users.users.doloro = {
     isNormalUser = true;
     shell = pkgs.fish;
-    extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
+    extraGroups = [
+      "wheel"
+      "dialout"
+    ]; # Enable ‘sudo’ for the user.
     packages = with pkgs; [
       tree
     ];