diff --git a/nix/services/kn/shared.nix b/nix/services/kn/shared.nix
index 03c69a83..e8b38fc9 100644
--- a/nix/services/kn/shared.nix
+++ b/nix/services/kn/shared.nix
@@ -26,8 +26,8 @@ in {
     # TODO: limit access to mongodb
     services.mongodb.enable = true;
     users.groups.infra = {};
-    # socket activation
     environment.systemPackages = [(
+      pkgs.mongosh
       pkgs.runCommandNoCC "knshell" { buildInputs = [ pkgs.makeWrapper ]; } ''
         makeWrapper ${pkgs.kninfra}/bin/shell $out/bin/knshell \
         ${lib.concatStringsSep " " (lib.mapAttrsToList (n: v: ''--set "${n}" "${v}"'') cfg.env)}