diff --git a/documentation/ref-manual/structure.rst b/documentation/ref-manual/structure.rst
index ff84b250b..e22de6047 100644
--- a/documentation/ref-manual/structure.rst
+++ b/documentation/ref-manual/structure.rst
@@ -539,6 +539,15 @@ licensing, see the
 ":ref:`dev-manual/licenses:maintaining open source license compliance during your product's lifecycle`"
 section in the Yocto Project Development Tasks Manual.

+.. _structure-build-tmp-deploy-spdx:
+
+``build/tmp/deploy/spdx/``
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This directory contains a Software Bill of Materials (SBOM) in SPDX format,
+as explained in detail in the ":ref:`dev-manual/sbom:creating a software bill of materials`"
+section of the Yocto Project Development Tasks Manual.
+
 .. _structure-build-tmp-deploy-images:

 ``build/tmp/deploy/images/``