diff --git a/drivers/watchdog/f71808e_wdt.c b/drivers/watchdog/f71808e_wdt.c
index 3a33c5344bd5eaaad338dd77e138b5610c35dc27..9a1c761258ce4655b29ca46249df4e4a55cda64c 100644
--- a/drivers/watchdog/f71808e_wdt.c
+++ b/drivers/watchdog/f71808e_wdt.c
@@ -496,7 +496,7 @@ static bool watchdog_is_running(void)
 
 	is_running = (superio_inb(watchdog.sioaddr, SIO_REG_ENABLE) & BIT(0))
 		&& (superio_inb(watchdog.sioaddr, F71808FG_REG_WDT_CONF)
-			& F71808FG_FLAG_WD_EN);
+			& BIT(F71808FG_FLAG_WD_EN));
 
 	superio_exit(watchdog.sioaddr);