diff --git a/buildroot-external/board/ova/barebox-env/boot/system0 b/buildroot-external/board/ova/barebox-env/boot/system0
index eece4af7d..4239b465c 100644
--- a/buildroot-external/board/ova/barebox-env/boot/system0
+++ b/buildroot-external/board/ova/barebox-env/boot/system0
@@ -1,5 +1,5 @@
 #!/bin/sh
 
 global bootm.image="/mnt/disk1/boot/bzImage"
-global linux.bootargs.dyn.root="root=/dev/sda2 rootfstype=squashfs ro"
+global linux.bootargs.dyn.root="root=PARTUUID=8d3d53e3-6d49-4c38-8349-aff6859e82fd rootfstype=squashfs ro"