diff --git a/boards/lowrisc/opentitan_earlgrey/doc/index.rst b/boards/lowrisc/opentitan_earlgrey/doc/index.rst
index b91c0700def..54c77fdb867 100644
--- a/boards/lowrisc/opentitan_earlgrey/doc/index.rst
+++ b/boards/lowrisc/opentitan_earlgrey/doc/index.rst
@@ -1,7 +1,4 @@
-.. _opentitan_earlgrey:
-
-OpenTitan Earl Grey
-###################
+.. zephyr:board:: opentitan_earlgrey
 
 Overview
 ********