diff --git a/dev-qt/qtwebengine/qtwebengine-6.10.9999.ebuild b/dev-qt/qtwebengine/qtwebengine-6.10.9999.ebuild
index 8e04a89a7707c..1c104fe28d052 100644
--- a/dev-qt/qtwebengine/qtwebengine-6.10.9999.ebuild
+++ b/dev-qt/qtwebengine/qtwebengine-6.10.9999.ebuild
@@ -229,6 +229,9 @@ src_configure() {
 		# TODO: fixup gn cross, or package dev-qt/qtwebengine-gn with =ON
 		# (see also BUILD_ONLY_GN option added in 6.8+ for the latter)
 		-DINSTALL_GN=OFF
+
+		# TODO: drop this if no longer errors out early during cmake generation
+		-DQT_GENERATE_SBOM=OFF
 	)
 
 	local mygnargs=(
diff --git a/dev-qt/qtwebengine/qtwebengine-6.9999.ebuild b/dev-qt/qtwebengine/qtwebengine-6.9999.ebuild
index 7405dd97ef2c4..bf6865f261dc1 100644
--- a/dev-qt/qtwebengine/qtwebengine-6.9999.ebuild
+++ b/dev-qt/qtwebengine/qtwebengine-6.9999.ebuild
@@ -229,6 +229,9 @@ src_configure() {
 		# TODO: fixup gn cross, or package dev-qt/qtwebengine-gn with =ON
 		# (see also BUILD_ONLY_GN option added in 6.8+ for the latter)
 		-DINSTALL_GN=OFF
+
+		# TODO: drop this if no longer errors out early during cmake generation
+		-DQT_GENERATE_SBOM=OFF
 	)
 
 	local mygnargs=(