diff --git a/meta-arm/conf/machine/qemuarm64-secureboot.conf b/meta-arm/conf/machine/qemuarm64-secureboot.conf
index b664dac8..99d92e07 100644
--- a/meta-arm/conf/machine/qemuarm64-secureboot.conf
+++ b/meta-arm/conf/machine/qemuarm64-secureboot.conf
@@ -4,8 +4,6 @@ require ${COREBASE}/meta/conf/machine/qemuarm64.conf
 
 KMACHINE = "qemuarm64"
 
-UBOOT_MACHINE = "qemu_arm64_defconfig"
-
 QB_MACHINE = "-machine virt,secure=on"
 QB_OPT_APPEND += "-no-acpi"
 QB_MEM = "-m 1024"