diff --git a/steps/50-configure.step b/steps/50-configure.step
index 9e6be13..76e78cc 100755
--- a/steps/50-configure.step
+++ b/steps/50-configure.step
@@ -19,4 +19,5 @@ arch-chroot /mnt echo $hostname > /etc/hostname
 
 echo "~> Configuring 'grub'"
 arch-chroot /mnt grub-install --target=x86_64-efi --efi-directory=/boot --bootloader-id=Arch_GRUB
+arch-chroot /mnt echo "GRUB_CMDLINE_LINUX='cryptdevice=UUID=`blkid -o value /dev/sda2 | head -n 1`'" > /etc/default/grub
 arch-chroot /mnt grub-mkconfig -o /boot/grub/grub.cfg