diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index 0f99ad3..2c5744b 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -61,7 +61,7 @@
  * is calculated by subtracting @base from the gpio number.
  */
 struct gpio_chip {
-	char			*label;
+	const char		*label;
 	struct device		*dev;
 	struct module		*owner;