-head-y := arch/x86/kernel/head_$(BITS).o
-head-$(CONFIG_X86_64) += arch/x86/kernel/head64.o
-head-y += arch/x86/kernel/init_task.o
+head-y := arch/x86/kernel/head_$(BITS).o
+head-y += arch/x86/kernel/head$(BITS).o
+head-y += arch/x86/kernel/init_task.o