diff --git a/arch/arm/mach-s3c64xx/pm.c b/arch/arm/mach-s3c64xx/pm.c
index 8bad64370689b4163501631e3b7fc85f7e184510..055e2858b0dd9a31c027ecd8d7032d6ecefbddc7 100644
--- a/arch/arm/mach-s3c64xx/pm.c
+++ b/arch/arm/mach-s3c64xx/pm.c
@@ -16,6 +16,7 @@
 #include <linux/suspend.h>
 #include <linux/serial_core.h>
 #include <linux/io.h>
+#include <linux/gpio.h>
 
 #include <mach/map.h>
 #include <mach/irqs.h>