diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 54e3ab0..456446f 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -58,6 +58,6 @@
 obj-$(CONFIG_ACPI_ASUS)		+= asus_acpi.o
 obj-$(CONFIG_ACPI_TOSHIBA)	+= toshiba_acpi.o
 obj-$(CONFIG_ACPI_HOTPLUG_MEMORY)	+= acpi_memhotplug.o
-obj-y				+= cm_sbs.o
+obj-$(CONFIG_ACPI_PROCFS_POWER)	+= cm_sbs.o
 obj-$(CONFIG_ACPI_SBS)		+= sbs.o
 obj-$(CONFIG_ACPI_SBS)		+= sbshc.o