diff --git a/drivers/rtc/rtc-ds1286.c b/drivers/rtc/rtc-ds1286.c
index 4b4c1b6a4187..4fcb16bbff4a 100644
--- a/drivers/rtc/rtc-ds1286.c
+++ b/drivers/rtc/rtc-ds1286.c
@@ -17,6 +17,7 @@
 #include <linux/platform_device.h>
 #include <linux/bcd.h>
 #include <linux/ds1286.h>
+#include <linux/io.h>
 
 #define DRV_VERSION		"1.0"
 
diff --git a/drivers/rtc/rtc-m48t35.c b/drivers/rtc/rtc-m48t35.c
index b9c1fe4a198e..0b2197559940 100644
--- a/drivers/rtc/rtc-m48t35.c
+++ b/drivers/rtc/rtc-m48t35.c
@@ -18,6 +18,7 @@
 #include <linux/rtc.h>
 #include <linux/platform_device.h>
 #include <linux/bcd.h>
+#include <linux/io.h>
 
 #define DRV_VERSION		"1.0"