diff --git a/drivers/char/watchdog/w83697hf_wdt.c b/drivers/char/watchdog/w83697hf_wdt.c
index 21e822e0eee..32710a97b16 100644
--- a/drivers/char/watchdog/w83697hf_wdt.c
+++ b/drivers/char/watchdog/w83697hf_wdt.c
@@ -233,7 +233,7 @@ wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
 	}
 
 	default:
-	  return -ENOIOCTLCMD;
+	  return -ENOTTY;
 	}
 	return 0;
 }