diff --git a/doc/usage/cmd/loadb.rst b/doc/usage/cmd/loadb.rst
index 0464b1f..4f9a52c 100644
--- a/doc/usage/cmd/loadb.rst
+++ b/doc/usage/cmd/loadb.rst
@@ -1,5 +1,8 @@
 .. SPDX-License-Identifier: GPL-2.0+:
 
+.. index::
+   single: loadb (command)
+
 loadb command
 =============