diff --git a/pkgs/shells/zsh/nix-zsh-completions/default.nix b/pkgs/shells/zsh/nix-zsh-completions/default.nix
index f60bb966003f..472cc47459cf 100644
--- a/pkgs/shells/zsh/nix-zsh-completions/default.nix
+++ b/pkgs/shells/zsh/nix-zsh-completions/default.nix
@@ -20,6 +20,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     homepage = "https://github.com/spwhitt/nix-zsh-completions";
     description = "ZSH completions for Nix, NixOS, and NixOps";
+    priority = 6; # prevent collisions with nix 2.4's built-in completions
     license = licenses.bsd3;
     platforms = platforms.all;
     maintainers = with maintainers; [ spwhitt olejorgenb hedning ma27 ];