diff --git a/shell.nix b/shell.nix
index 880ddbe5..3d3f1512 100644
--- a/shell.nix
+++ b/shell.nix
@@ -9,7 +9,7 @@ let
     elif [[ $1 == "iso" ]]; then
       nix build ${configs}.niximg.${build}.isoImage
     else
-      sudo -E nix shell -vv ${configs}.$1.${build}.toplevel -c switch-to-configuration $2
+      sudo nixos-rebuild --flake ".#$1" $2
     fi
   '';
 in