diff --git a/shell.nix b/shell.nix
index 0d51f616..7ff9167d 100644
--- a/shell.nix
+++ b/shell.nix
@@ -10,9 +10,9 @@ let
     elif [[ $1 == "iso" ]]; then
       nix build ${configs}.niximg.${build}.isoImage
     elif [[ -z $2 ]]; then
-      sudo -E nix run -vv ${configs}.${hostname}.${build}.toplevel -c switch-to-configuration $1
+      sudo -E nix shell -vv ${configs}.${hostname}.${build}.toplevel -c switch-to-configuration $1
     else
-      sudo -E nix run -vv ${configs}.$1.${build}.toplevel -c switch-to-configuration $2
+      sudo -E nix shell -vv ${configs}.$1.${build}.toplevel -c switch-to-configuration $2
     fi
   '';
 in pkgs.mkShell {