diff --git a/build/ublue-os-just/00-default.just b/build/ublue-os-just/00-default.just
index 48db3828..d91feaa9 100644
--- a/build/ublue-os-just/00-default.just
+++ b/build/ublue-os-just/00-default.just
@@ -10,6 +10,10 @@ _default:
 bios:
   systemctl reboot --firmware-setup
 
+# Regenerate GRUB config, useful in dual-boot scenarios where a second operating system isn't listed
+regenerate-grub:
+  sudo grub2-mkconfig -o /etc/grub2.cfg
+
 # Show the changelog
 changelogs:
   rpm-ostree db diff --changelogs