diff --git a/var/spack/repos/builtin/packages/qt-base/package.py b/var/spack/repos/builtin/packages/qt-base/package.py
index c031a6711e8..05b9f3b25dd 100644
--- a/var/spack/repos/builtin/packages/qt-base/package.py
+++ b/var/spack/repos/builtin/packages/qt-base/package.py
@@ -123,6 +123,11 @@ def setup_dependent_build_environment(self, env, dependent_spec):
         # so we have to point dependencies to the cmake config files.
         env.prepend_path("QT_ADDITIONAL_PACKAGES_PREFIX_PATH", self.spec.prefix)
 
+        # Qt creates SBOM files based on the used SBOM files in the prefix, and
+        # in additional paths for other components.
+        if self.spec.satisfies("@6.9:"):
+            env.prepend_path("QT_ADDITIONAL_SBOM_DOCUMENT_PATHS", self.spec.prefix)
+
 
 class QtBase(QtPackage):
     """Qt Base (Core, Gui, Widgets, Network, ...)"""