diff --git a/mk/qemu.mk b/mk/qemu.mk
index b721991..191b27f 100644
--- a/mk/qemu.mk
+++ b/mk/qemu.mk
@@ -34,7 +34,7 @@ else ifeq ($(ARCH),aarch64)
 	uefi?=yes
 	live=yes
 	QEMU_ARCH=aarch64
-	QEMU_MACHINE=virt
+	QEMU_MACHINE?=virt
 	QEMU_CPU=max
 	QEMU_SMP?=1
 	QEMU_MEM?=2048