diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c
index f9e85ace5e71db8dc283303f7fa561d21217f084..16492e2baf5e12b00b8537f579ef06f367c85fca 100644
--- a/drivers/rtc/rtc-at91sam9.c
+++ b/drivers/rtc/rtc-at91sam9.c
@@ -18,6 +18,7 @@
 #include <linux/kernel.h>
 #include <linux/mfd/syscon.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/platform_data/atmel.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>