diff --git a/meta/classes/image-live.bbclass b/meta/classes/image-live.bbclass
index 1476840eab..2f3261ec16 100644
--- a/meta/classes/image-live.bbclass
+++ b/meta/classes/image-live.bbclass
@@ -3,8 +3,9 @@ AUTO_SYSLINUXCFG = "1"
 INITRD_IMAGE ?= "core-image-minimal-initramfs"
 INITRD ?= "${DEPLOY_DIR_IMAGE}/${INITRD_IMAGE}-${MACHINE}.cpio.gz"
 SYSLINUX_ROOT = "root=/dev/ram0 "
-SYSLINUX_TIMEOUT = "10"
-LABELS += "boot install"
+SYSLINUX_TIMEOUT ?= "10"
+SYSLINUX_LABELS ?= "boot install"
+LABELS_append = " ${SYSLINUX_LABELS} "
 
 ROOTFS ?= "${DEPLOY_DIR_IMAGE}/${IMAGE_BASENAME}-${MACHINE}.ext3"