diff --git a/drivers/char/watchdog/iTCO_wdt.c b/drivers/char/watchdog/iTCO_wdt.c
index ebd3fc8000e5..8f89948832fc 100644
--- a/drivers/char/watchdog/iTCO_wdt.c
+++ b/drivers/char/watchdog/iTCO_wdt.c
@@ -494,7 +494,7 @@ static int iTCO_wdt_ioctl (struct inode *inode, struct file *file,
 		}
 
 		default:
-			return -ENOIOCTLCMD;
+			return -ENOTTY;
 	}
 }
 
diff --git a/drivers/char/watchdog/pnx4008_wdt.c b/drivers/char/watchdog/pnx4008_wdt.c
index e7f0450a939d..db2731ba88e3 100644
--- a/drivers/char/watchdog/pnx4008_wdt.c
+++ b/drivers/char/watchdog/pnx4008_wdt.c
@@ -184,7 +184,7 @@ static int
 pnx4008_wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
 		  unsigned long arg)
 {
-	int ret = -ENOIOCTLCMD;
+	int ret = -ENOTTY;
 	int time;
 
 	switch (cmd) {