diff --git a/arch/arm/mach-at91sam9/at91sam9260.c b/arch/arm/mach-at91sam9/at91sam9260.c
index cb775b3..04e954b 100644
--- a/arch/arm/mach-at91sam9/at91sam9260.c
+++ b/arch/arm/mach-at91sam9/at91sam9260.c
@@ -16,7 +16,7 @@
 	}
 };
 
-static int at91sam9260_initialize(unsigned long main_clock)
+static int at91sam9260_initialize(void)
 {
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9260_gpio, 3);