diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h
index 44985c4a1e86..417d9f37077a 100644
--- a/include/linux/watchdog.h
+++ b/include/linux/watchdog.h
@@ -90,9 +90,6 @@ struct watchdog_ops {
  *
  * The driver-data field may not be accessed directly. It must be accessed
  * via the watchdog_set_drvdata and watchdog_get_drvdata helpers.
- *
- * The lock field is for watchdog core internal use only and should not be
- * touched.
  */
 struct watchdog_device {
 	int id;