diff --git a/Makefile.inc b/Makefile.inc
index d2235e0..0dd4864 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -93,6 +93,7 @@
 subdirs-y += src/mainboard/$(MAINBOARDDIR)
 subdirs-y += src/security
 subdirs-y += payloads payloads/external
+subdirs-$(CONFIG_SBOM) += src/sbom
 
 subdirs-y += site-local
 subdirs-y += util/checklist util/testing