diff --git a/doc/usage/cmd/addrmap.rst b/doc/usage/cmd/addrmap.rst
index 472fd54..6d0dbce 100644
--- a/doc/usage/cmd/addrmap.rst
+++ b/doc/usage/cmd/addrmap.rst
@@ -1,5 +1,8 @@
 .. SPDX-License-Identifier: GPL-2.0+
 
+.. index::
+   single: addrmap (command)
+
 addrmap command
 ===============