diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index c3da039..b469ab2 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -4,3 +4,4 @@
 
 obj-$(CONFIG_HAVE_GPIO_LIB)	+= gpiolib.o
 
+obj-$(CONFIG_GPIO_PCF857X)	+= pcf857x.o