diff --git a/drivers/note/notelog_driver.c b/drivers/note/notelog_driver.c
index 82e594659d..01ec3d6e44 100644
--- a/drivers/note/notelog_driver.c
+++ b/drivers/note/notelog_driver.c
@@ -79,7 +79,7 @@ static void notelog_irqhandler(FAR struct note_driver_s *drv, int irq,
  * Private Data
  ****************************************************************************/
 
-static struct note_driver_ops_s g_notelog_ops =
+static const struct note_driver_ops_s g_notelog_ops =
 {
   NULL,                  /* add */
   notelog_start,         /* start */