diff --git a/.config/nix/systems/darwin/configuration.nix b/.config/nix/systems/darwin/configuration.nix
index 479bc5a..e37ff7f 100644
--- a/.config/nix/systems/darwin/configuration.nix
+++ b/.config/nix/systems/darwin/configuration.nix
@@ -45,8 +45,8 @@
   nix.settings.experimental-features = "nix-command flakes";
 
   # Create /etc/zshrc that loads the nix-darwin environment.
-  programs.zsh.enable = true;  # default shell on catalina
-  #programs.fish.enable = true;
+  programs.zsh.enable = true;
+  programs.zsh.enableCompletion = false;  # causing "insecure directories and files" error if user doesn't have configured zsh
 
   # Set Git commit hash for darwin-version.
   system.configurationRevision = vars.rev or null;