diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile
index f0261f9989afe1958be83292faf52f05c8a48405..d390e037bd11de8fb87d7f83f6234700e251cb83 100644
--- a/arch/i386/kernel/Makefile
+++ b/arch/i386/kernel/Makefile
@@ -20,6 +20,8 @@ obj-$(CONFIG_X86_MSR)		+= msr.o
 obj-$(CONFIG_X86_CPUID)		+= cpuid.o
 obj-$(CONFIG_MICROCODE)		+= microcode.o
 obj-$(CONFIG_APM)		+= apm.o
+obj-$(CONFIG_ACPI)		+= acpi.o
+obj-$(CONFIG_ACPI_SLEEP)	+= acpi_wakeup.o
 obj-$(CONFIG_X86_SMP)		+= smp.o smpboot.o trampoline.o
 obj-$(CONFIG_X86_MPPARSE)	+= mpparse.o
 obj-$(CONFIG_X86_LOCAL_APIC)	+= apic.o nmi.o