diff --git a/opt/grub-config b/opt/grub-config
index c882832..9329c20 100644
--- a/opt/grub-config
+++ b/opt/grub-config
@@ -5,7 +5,7 @@ GRUB_PREFIX="/boot/efi/LOADER/grub"
 CFG_CUSTOM_BEFORE="custom_before.cfg"
 CFG_CUSTOM_AFTER="custom_after.cfg"
 CONTAINER_UUID="$(blkid --output value --match-tag UUID "$(grep " /run/void-usb/container " /proc/mounts | sed -e 's/ .*//')")"
-LINUX_CMDLINE="root=/dev/loop0 ro void-usb-container=$CONTAINER_UUID"
+LINUX_CMDLINE="root=/dev/loop0 ro void-usb-container=UUID=$CONTAINER_UUID"
 
 DEFAULT_LINUX=/boot/vmlinu?
 if [ ! -f "$DEFAULT_LINUX" ]; then