diff --git a/meta/classes/syslinux.bbclass b/meta/classes/syslinux.bbclass
index 944bd92da2..2a5b7660bc 100644
--- a/meta/classes/syslinux.bbclass
+++ b/meta/classes/syslinux.bbclass
@@ -27,7 +27,7 @@ SYSLINUXDIR = "/"
 # a console=...some_tty...
 SYSLINUX_DEFAULT_CONSOLE ?= ""
 SYSLINUX_SERIAL ?= "0 115200"
-SYSLINUX_SERIAL_TTY ?= "ttyS0,115200"
+SYSLINUX_SERIAL_TTY ?= "console=ttyS0,115200"
 ISO_BOOTIMG = "isolinux/isolinux.bin"
 ISO_BOOTCAT = "isolinux/boot.cat"
 MKISOFS_OPTIONS = "-no-emul-boot -boot-load-size 4 -boot-info-table"