diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index 695e54f..c75772e 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -1,16 +1,8 @@
-power_supply-objs := power_supply_core.o
+ccflags-$(CONFIG_POWER_SUPPLY_DEBUG) := -DDEBUG
 
-ifeq ($(CONFIG_SYSFS),y)
-power_supply-objs += power_supply_sysfs.o
-endif
-
-ifeq ($(CONFIG_LEDS_TRIGGERS),y)
-power_supply-objs += power_supply_leds.o
-endif
-
-ifeq ($(CONFIG_POWER_SUPPLY_DEBUG),y)
-EXTRA_CFLAGS += -DDEBUG
-endif
+power_supply-y				:= power_supply_core.o
+power_supply-$(CONFIG_SYSFS)		+= power_supply_sysfs.o
+power_supply-$(CONFIG_LEDS_TRIGGERS)	+= power_supply_leds.o
 
 obj-$(CONFIG_POWER_SUPPLY)	+= power_supply.o