diff --git a/functions b/functions
index 4df91bc..8eccc27 100644
--- a/functions
+++ b/functions
@@ -348,6 +348,8 @@ add_module() {
             firmware)
                 if [[ -e /usr/lib/firmware/$value ]]; then
                     add_file "/usr/lib/firmware/$value" "/usr/lib/firmware/$va
+                else
+                    warning "firmware $value for module $module does not exist
                 fi
                 ;;
         esac