diff --git a/live-build/ubuntu-cpc/hooks/032-disk-image.binary b/live-build/ubuntu-cpc/hooks/032-disk-image.binary
index 8b6dab46..13c197d9 100755
--- a/live-build/ubuntu-cpc/hooks/032-disk-image.binary
+++ b/live-build/ubuntu-cpc/hooks/032-disk-image.binary
@@ -5,6 +5,7 @@
 BOOTPART_START=
 BOOTPART_END=
 BOOT_MOUNTPOINT=
+ROOTPART_START=1
 
 case $ARCH in
 	ppc64el)