diff --git a/Makefile b/Makefile
index 94b50d674..3317c833a 100644
--- a/Makefile
+++ b/Makefile
@@ -85,6 +85,14 @@ BOOT_PROTOCOL = linux-efi-handover64
 CARGO_OSDK_ARGS += --scheme tdx
 endif
 
+ifeq ($(BOOT_PROTOCOL), linux-legacy32)
+BOOT_METHOD = qemu-direct
+OVMF = off
+else ifeq ($(BOOT_PROTOCOL), multiboot)
+BOOT_METHOD = qemu-direct
+OVMF = off
+endif
+
 ifneq ($(SCHEME), "")
 CARGO_OSDK_ARGS += --scheme $(SCHEME)
 else