diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index ed139f5a6f74..7206a64f3ff7 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -25,6 +25,7 @@
 #include <linux/serial.h>
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
+#include <linux/uaccess.h>
 
 #define SC16IS7XX_NAME			"sc16is7xx"