diff --git a/include/linux/gpio_keys.h b/include/linux/gpio_keys.h
index b5ca4b2c08ecad2fad00c33d48b62466737966b0..004ff33ab38e4dc3e2135f01ebe6b0d84fbb1529 100644
--- a/include/linux/gpio_keys.h
+++ b/include/linux/gpio_keys.h
@@ -1,6 +1,8 @@
 #ifndef _GPIO_KEYS_H
 #define _GPIO_KEYS_H
 
+struct device;
+
 struct gpio_keys_button {
 	/* Configuration parameters */
 	unsigned int code;	/* input event code (KEY_*, SW_*) */