diff --git a/qb/config.libs.sh b/qb/config.libs.sh
index 04cdff7566..a58f88f77b 100644
--- a/qb/config.libs.sh
+++ b/qb/config.libs.sh
@@ -403,6 +403,12 @@ if [ "$HAVE_VULKAN" != 'no' ] && [ ! -e deps/glslang/glslang/README.md ]; then
 	HAVE_VULKAN=no
 fi
 
+if [ "$HAVE_VULKAN" != 'no' ] && [ ! -e deps/SPIRV-Cross/README.md ]; then
+	echo "Warning: SPIRV-Cross submodule not loaded, can't use Vulkan."
+	echo "To fix, use:  git submodule init && git submodule update"
+	HAVE_VULKAN=no
+fi
+
 check_pkgconf PYTHON python3
 
 if [ "$HAVE_MATERIALUI" != 'no' ] || [ "$HAVE_XMB" != 'no' ] || [ "$HAVE_ZARCH" != 'no' ]; then