diff --git a/opennebula-images/centos-build-luks-opennebula-image.sh b/opennebula-images/centos-build-luks-opennebula-image.sh
index 63effac..d577e9f 100755
--- a/opennebula-images/centos-build-luks-opennebula-image.sh
+++ b/opennebula-images/centos-build-luks-opennebula-image.sh
@@ -61,12 +61,10 @@ losetup "$LOOPBACK_DEVICE" "$IMAGE_PATH"
 trap cleanup EXIT
 
 # Create partition table, format partitions.
-{
-sfdisk --no-reread "$LOOPBACK_DEVICE" <<EOF
-1M,500M,L,*
-,,L
-EOF
-} || true
+parted --script "$LOOPBACK_DEVICE" \
+	mklabel msdos \
+	mkpart primary ext4 1M 500M \
+	mkpart primary ext4 500M 100%
 
 partprobe "$LOOPBACK_DEVICE"