diff --git a/meta-raspberrypi/conf/machine/raspberrypi3-64.conf b/meta-raspberrypi/conf/machine/raspberrypi3-64.conf
index 80b6bc4..60fe8bd 100644
--- a/meta-raspberrypi/conf/machine/raspberrypi3-64.conf
+++ b/meta-raspberrypi/conf/machine/raspberrypi3-64.conf
@@ -31,3 +31,5 @@
 # "zImage" not supported on arm64 and ".gz" images not supported by bootloader yet
 KERNEL_IMAGETYPE_DIRECT ?= "Image"
 KERNEL_BOOTCMD ?= "booti"
+
+ARMSTUB ?= "armstub8.bin"