diff --git a/drivers/char/watchdog/softdog.c b/drivers/char/watchdog/softdog.c
index 20e5eb8..a91edaf 100644
--- a/drivers/char/watchdog/softdog.c
+++ b/drivers/char/watchdog/softdog.c
@@ -47,6 +47,8 @@
 #include <linux/notifier.h>
 #include <linux/reboot.h>
 #include <linux/init.h>
+#include <linux/jiffies.h>
+
 #include <asm/uaccess.h>
 
 #define PFX "SoftDog: "