diff --git a/arch/arm/mach-rk2818/Makefile b/arch/arm/mach-rk2818/Makefile
index 37d0a03492ac..cd591e1ba7a9 100644
--- a/arch/arm/mach-rk2818/Makefile
+++ b/arch/arm/mach-rk2818/Makefile
@@ -1,4 +1,4 @@
-obj-y += io.o idle.o irq.o timer.o iomux.o
+obj-y += io.o idle.o irq.o timer.o iomux.o gpio.o
 obj-y += devices.o
 obj-y += proc_comm.o
 obj-y += vreg.o