diff --git a/proto/Makefile b/proto/Makefile
index 9d291ed8bb0b30eb1a88ec78acf174bb12e904e5..efa4c33081244caf8ab3d34e28ab8610af8892a1 100644
--- a/proto/Makefile
+++ b/proto/Makefile
@@ -1,6 +1,7 @@
 # https://sysprog21.github.io/lkmpg/
 obj-m += vmbr.o
-vmbr-objs := hypervisor.o ./msr/msr.o ./region/vmxon.o ./vcpu/vcpu.o
+vmbr-objs := hypervisor.o ./msr/msr.o ./region/vmxon.o ./vcpu/vcpu.o \
+	./vmx/vmx.o
 
 PWD := $(CURDIR)