diff --git a/bud/buildthis.bash b/bud/buildthis.bash
index f5ab2a9..7b648ad 100644
--- a/bud/buildthis.bash
+++ b/bud/buildthis.bash
@@ -3,7 +3,7 @@
 attr="$FLAKEROOT#$HOST"
 if [ -x /run/wrappers/bin/sudo ]; then
     export PATH=/run/wrappers/bin:$PATH
-    sudo nixos-rebuild --flake "$attr" "${@:1}"
+    sudo nixos-rebuild --flake "$attr" "${@:-switch}"
 else
-    nixos-rebuild --flake "$attr" "${@:1}"
+    nixos-rebuild --flake "$attr" "${@:-switch}"
 fi