diff --git a/arch/arm/include/asm/mach-imx/gpio.h b/arch/arm/include/asm/mach-imx/gpio.h
index 1b7c9cd..2576352 100644
--- a/arch/arm/include/asm/mach-imx/gpio.h
+++ b/arch/arm/include/asm/mach-imx/gpio.h
@@ -9,6 +9,8 @@
 #define __ASM_ARCH_IMX_GPIO_H
 
 #if !(defined(__KERNEL_STRICT_NAMES) || defined(__ASSEMBLY__))
+#include <linux/types.h>
+
 /* GPIO registers */
 struct gpio_regs {
 	u32 gpio_dr;	/* data */